protonscr

Deus Ex: Game of the Year Edition

protonopen appid 6910Game compatibility - Unofficial
ValveSoftware/Proton#798 · opened 2018-08-28 by Ruedii · updated 2026-02-09 · 65 comments · github · game page · search this game
RRuedii 2018-08-28 github

Deus Ex: Game of the Year edition works perfectly with the shipping D3D Render path. As far as I can tell there are no noticeable bugs, and performance is exceptional.

The shipping GL Render path is a little buggy, but it is buggy on many Windows systems as well.

NNickZ 2018-08-28 github

You need to put the APP ID in the title and your system specs in a gist, which you can get from (Steam -> Help -> System Information)

Ddreamer 2018-08-28 github

There's a single issue when running DX under wine/proton: when the game is running in non-native resolution, cursor tends to behave weirdly (for me it moves 1px up on every mouse event) - making it a bit hard to operate menus and playing the game. This could be avoided if the native resolution was injected into System/DeusEx.ini file on start.

Also - in case this game is whitelisted, then Deus Ex: Revision (397550) should be whitelisted as well - it seems to work better than original game on modern systems, and allows selection of screen resolution before starting the game (bypassing mouse glitch).

Based on short walking around the first level, both DX:GOTY and DX:Revision worked perfectly for me (sans mouse glitch in GOTY). I tested both games using OpenGL and D3D renderer (both worked fine for me, but there are some reports, that OpenGL in GOTY results in low framerate).

my system specs

Llegluondunet 2018-08-28 github

last time I launched this game with Proton 3.7, the mouse cursor had not fluid movements.

ZZero86Sk 2018-08-28 github

When I run it, the brightness controls dont work and i had every texture black, on DX and GL

My Stem Info:
https://gist.github.com/Zero86Sk/d629f657c1ae861c36657cdf238a7765

Ddreamer 2018-08-28 github

Mouse glitch issue seems to be happening in other titles as well, I created the separate issue for it: #831

Aandrebadaia 2018-08-30 github

It worked without change or workaround.

Distro: Linux Mint 19 Tara
Processor: AMD Ryzen 7 1700
GPU: GTX 1070, Nvidia proprietary driver 396.54
RAM: 32GB
Kernel (custom) - 4.17.14 (optimized for Ryzen)
Resolution: 1920x1080
Proton 3.7-3

Ddreamer 2018-08-31 github

After upgrade to 3.7-5 the game works perfectly (I would rate it Platinum in winedb scale), so it's a good candidate for whitelisting, I guess? Don't forget about Deus Ex: Revision (397550) ;)

Ddreamer 2018-08-31 github

I tested it on older laptop i5-2520M (Sandybridge), Mesa 18.0.5. There seem to be no issues with the game itself, but it's unplayable due to another mouse issue. The cursor is hypersensitive - it jumps around edges of the screen on slightest movement. This is most likely a bug in wine, as I've seen the same exact same behaviour in Linux version of System Shock 2 (which is not a native port but runs through an older version of wine).

This is older hardware, but according to game store page - it should be supported. system info

Zzolstarym 2018-08-31 github

Tried 3.7.5-beta, the brightness controls do not work.
Linux mint 19
nvidia 750ti 390.77

AAsciiWolf 2018-09-01 github

Fedora 28, Mesa 18.0.5, Intel HD Graphics 620

Works out-of-box after disabling Wayland (mouse cursor was bugged on Wayland).

Jjesseonslow 2018-09-04 github

I'm also having the problems getting the brightness settings to work. Can't change brightness with Direct3D or OpenGL. Brightness setting seems to work fine using the software renderer.

I'm running 3.7.5-beta on Ubuntu 16.04.5 LTS.

Video card info:

Driver: NVIDIA Corporation GeForce GTX 1050 Ti/PCIe/SSE2
Driver Version: 4.6.0 NVIDIA 396.54 with Nvidia driver 396.5

AAsciiWolf 2018-10-06 github

Fedora 28, Mesa 18.0.5, AMD RX 580.

Also works out-of-box (on Xorg).

Bbobwya 2019-05-03 github

After upgrade to 3.7-5 the game works perfectly (I would rate it Platinum in winedb scale), so it's a good candidate for whitelisting, I guess? Don't forget about Deus Ex: Revision (397550) ;)

Have you checked Deus Revision recently... They appear to moved to using .Net 3.5 this year. So now I can't get the game to launch reliably and more. I'll do some testing with different distributions. Currently I'm just testing it outside of Proton, with Wine Staging 4.7. I'll be testing it under Proton this weekend...

Ddreamer 2019-05-04 github

@bobwya Just installed Deus Ex: GOTY and Deus Ex: Revision and launched using Proton 4.2-3. Both games worked out of the box, I had no issues whatsoever (selected OpenGL renderer) - but I only started campaign and nothing more. If you'll find any issues, remember to upload a logfile.

Ddreamer 2019-05-04 github

@zolstarym

That's because DX tries to change brightness of whole screen and not just in-application. You can try workaround I described here: https://github.com/ValveSoftware/Proton/issues/1550#issuecomment-487287891 but it will turn off Proton's fullscreen-window mode (game will change resolution of your display).

Bbobwya 2019-05-04 github

@zolstarym

You could also try:

wine reg add 'HKEY_CURRENT_USER\Software\Wine\X11 Driver\' /v UseXVidMode /t reg_sz /d N /f

See: WineHQ Wiki: Useful Registry Keys.

Ddreamer 2019-05-04 github

@bobwya Value 'N' is default for these keys in Proton (unlike upstream Wine), so your line does nothing. Also, if you skip setting UseXRandR to 'Y' then the game will mess up your screen on start. It's safer to import this reg file. But it's not officially supported in Proton - just a hack to bring part of normal Wine functionality.

RRuedii 2019-05-25 github

@bobwya Value 'N' is default for these keys in Proton (unlike upstream Wine), so your line does nothing. Also, if you skip setting UseXRandR to 'Y' then the game will mess up your screen on start. It's safer to import this reg file. But it's not officially supported in Proton - just a hack to bring part of normal Wine functionality.

Yes, in upstream wine it defaults to unspecified, or autodetect. This means UseXVidMode is set to N if a sufficient version of XRandr is present, and otherwise set to Y for the functions not covered by XRandr.

XVidMode only adds a few features, which are not needed and potential for abuse. Specifically it allows specifying full scanlines, not just having the X-Server create an autodetect scanline set based on dimensions.

Additionally, XVidMode is under-maintained, is prone to glitching with modern compositors, isn't well tested on modern KMS/DRI based video drivers, and doesn't even ship in the default install of some modern distros, as it is in the "legacy" module set.

Needless to say "N" is a good default for this.

As a note, yes, the gamma slider does not work on the D3D rendering path. That is a moot bug in my opinion. You can adjust that system side or monitor side. I think it still is worthy of whitelist.

RRuedii 2019-05-28 github

@bobwya Just installed Deus Ex: GOTY and Deus Ex: Revision and launched using Proton 4.2-3. Both games worked out of the box, I had no issues whatsoever (selected OpenGL renderer) - but I only started campaign and nothing more. If you'll find any issues, remember to upload a logfile.

Any issues I found with the GL renderer on GOTY Edition were the EXACT same issues reported by other users on Windows. They are minor "render quality" bugs. Enhanced edition fixes all these bugs. This is bug for bug replication. I think that's near perfect.

I will check later if the issue with the Gama slider on GOTY Edition is fixed. That, too, is a known issue for some people on the GL Renderer in Windows. However, this bug is substantial enough for a workaround to be deemed necessary if it is found to not be a bug purely in the game, but a common bug interaction with GL drivers. This is especially because the same workaround may fix a LOT of "Gamma slider doesn't work" bugs.

Ddreamer 2019-05-28 github

@Ruedii this gamma bug is not OpenGL/D3D related, it's xvidmode related. IIRC from investigating this bug - Unreal engine used SetDeviceGammaRamp WINAPI function to change gamma for whole display, which Wine maps to XF86VidModeSetGammaRamp. This function is disabled by default on Proton, as I described already in this comment (there's a link to the exact line that caused gamma to be disabled).

If someone wants to give it a shot at fixing this (which would involve implementing gamma ramp for specific X11 window, which I have no idea how to do at the moment), then starting point in Wine is file dlls/winex11.drv/xvidmode.c.

AAsciiWolf 2019-08-01 github

Fedora 30, GNOME 3.32, Mesa 19.1.2, AMD RX 580, Proton 4.11.

Game works great on X.Org, however it still has serious issues when running on Wayland. Mouse pointer now works correctly under Wayland, but there is not an easy way to change screen resolution (in-game option doesn't work) and, what is worse, switching to window mode or alt+tabbing out of the game causes the whole GNOME session to hang or crash.

Sshoober420 2019-11-29 github

Whitelist Request

System Information

Game works out of the box, but I personally recommend using the updated OpenGL renderer (https://www.cwdohnal.com/utglr/). Wine/Proton has poopy Direct3D 10 support, and I cannot get Kentie's Direct3D10 renderer to work (https://kentie.net/article/d3d10drv/index.htm). nGlide works too, but has some noticeable performance regressions compared to OpenGL.

Also, install Kentie's Deus Exe patch!

https://kentie.net/article/dxguide/index.htm

Sshoober420 2020-01-06 github

Here is a log of Deus Ex attempting to launch but crashing at startup with kentie's d3d10 render.

steam-6910.log

Ssoredake 2020-02-20 github

Game works fine with proton 5.0-2.

Zzolstarym 2020-02-20 github

On 5.0-2, brightness setting is still broken (game is overly dark), and the mouse is still overly sensitive in the menus

Aaeikum 2021-05-07 github

The brightness adjuster should be working in Proton 6.3-3 and later.

WWedge009 2021-06-14 github

I tried the original Deus Ex GotY Edition via Proton in May 2020, but since the brightness function did not work it was too dark to be playable and I resorted to using my old Windows 7 machine to play.

Returning to Deus Ex via Revision in June 2021, I noticed the brightness function does work with Proton 6.3 as per aeikum's remark, however that version of Proton also introduces an extreme colour banding regression, unfortunately. Thus I'm resorting to playing on Windows 7 again since playing under Proton would force me to choose between colour banding (Proton 6.3) vs too dark to play reasonably (Proton 5.13). I confirm this is an issue for both GotY and Revision versions, both under D3D renderer, with Radeon GPU and open-source drivers (Mesa 20.2.6, I believe).

Edit: Correction - D3D under Revision crashes with 'abnormal program termination' message, but behaviour under OpenGL matches behaviour for GotY D3D (colour banding under Proton 6.3, no brightness function under Proton 5.13).

Kkisak-valve maintainer 2021-06-14 github

Hello @Wedge009, can you take a couple screenshots of the rendering artifacts that you're seeing with Proton 6.3 and share them? Also, please copy your system information from Steam (Steam -> Help -> System Information) and put it in a gist, then include a link to the gist in this issue report.

Aaeikum 2021-06-14 github

@Wedge009 I'm pretty sure the color banding can be fixed by using the 32-bit texture depth option in the game's Display settings. I'm not sure how it compares to Windows. (I'm only testing with GOTY edition in D3D mode.)

Sshoober420 2021-06-14 github

@Wedge009
Have you tried kentie’s D3D10 patch or the other opengl patch?

https://kentie.net/article/d3d10drv/

https://www.cwdohnal.com/utglr/

WWedge009 2021-06-14 github

I forgot to mention that, yes, I did try both 16-bit and 32-bit rendering, no apparent difference. Keep in mind no settings were changed between selecting Proton 5.13 and 6.3 - there is no colour banding with Proton 5.13 but I lose the brightness adjustment in that case.

I'm also aware of the third-party renderers but have not seen reason to use them yet - I was under the impression that Revision would have included renderer improvements, is that wrong?

Zzolstarym 2021-06-14 github

On proton experimental.
The brightness kinda makes some things brighter, but with the color banding or whatever it is called happening.
20210614164019_1

Trying 16bit in settings breaks the game with input not working and black screen, so this is with 32bit.

WWedge009 2021-06-15 github

@kisak-valve System information: https://gist.github.com/Wedge009/c5cf79fa19bdd9819576fb21f329b0d1 (sound card isn't reported correctly but I don't think that's relevant here...)

Proton 5.13-6, GotY D3D 32-bit (brightness adjustment does not work):
20210615094848_1

Proton 5.13-6, GotY D3D 16-bit (brightness adjustment does not work):
20210615095216_1

Proton 6.3-4: GotY D3D 32-bit (brightness adjustment does work):
20210615100223_1

Proton 6.3-4: GotY D3D 16-bit (brightness adjustment does work):
20210615095927_1

While 32-bit rendering under Proton 6.3 is a marginal improvement over 16-bit rendering, if you compare it to Proton 5.13's output, it still exhibits some colour banding - ie the gradient isn't as 'smooth' as the output for Proton 5.13. (Actually, on closer inspection it looks like Proton 6.3 increases the brightness and/or gamma with respect to 5.13 so perhaps that's where the banding comes from.)

Revision appears to behave in the same way as GotY. There's no option, at least within game, to switch between 16-bit and 32-bit rendering, and as mentioned above, D3D crashes on start-up for me, so this is with OpenGL.

Proton 5.13-6, Revision OpenGL 32-bit (brightness adjustment does not work):
20210615100831_1

Proton 6.3-4, Revision OpenGL 32-bit (brightness adjustment does work):
20210615101059_1

Hope that provides sufficient information to understand what I wrote yesterday.

Sshoober420 2021-06-15 github

@Wedge009
CWDonhal made the new D3D patch for Revision, I’m not sure if he made a newer OpenGL render for revision as well, or if revision bundles the same OpenGL render i linked (i don’t have revision).

Well if you’re running into rendering issues, I would always opt for the OpenGL render for more performance, and less bugs during the transition calls of what ever wrapper you’re using. This will use pure OpenGL with no need for Protons D3D wrapper.

I always played Deus Ex with the CWDohnal OpenGL patch, even on Windows. It always worked for me and had the best performance.

One thing to consider, since this is a Unreal 1 engine game, is that this engine was optimized for the Glide API. A lot of purist who play Unreal 1 engine games use a glide wrapper like nGlide. I would give nGlide a shot as well.

https://www.zeus-software.com/downloads/nglide

Considering this is one of my favorite games, i’m going to install and do some testing myself and post my results as well.

WWedge009 2021-06-15 github

With some games, I found the strange situation where D3D under Proton works but OpenGL under Proton doesn't. However in this case, with the 'stock' renderers provided I don't have a choice: only D3D is listed as 'compatible' for GotY and only OpenGL works for me under Revision.

As an aside, the only Glide-targeted game I've really played is Wing Commander Prophecy and Secret Ops, and the fan community has since created an OpenGL-based renderer for those games.

Back to the Proton situation, if others are doing testing besides me that would be good. More samples, can determine if it's an issue with Proton and/or my particular hardware/software stack, etc.

Edit: I forgot to mention that I did try getting screenshots from Windows 7 for comparison purposes but I was not getting images that accurately reflected what I was seeing in-game. However, for the purposes of my analysis above, Windows 7 rendering is smooth and brightness works (of course).

Sshoober420 2021-06-15 github

@Wedge009
It’s standard to tick the unsupported renderers button for GotY to use CWDonhal OpenGL. You can also change it in the .ini file or type “preferences” in the deus ex console and navigate the directory tree.

Which OpenGL renderer are you using? Does revision come with a new D3D and OpenGL render or just D3D?

WWedge009 2021-06-15 github

I'm aware of the unsupported renderer option but I thought to stick with what's 'recommended'. I only played Deus Ex for the first time in 2020 (late to the party, I know) so I'm not familiar with all the work-arounds, etc.

For Revision, I have D3D and OpenGL listed as supported renderers. There's no further detail on what 'OpenGL' entails. I'm not sure if this discussion is relevant to the colour banding issues specific to Proton, however. If it can be demonstrated that third-party rendering options work well under Proton I'd be willing to consider them.

Aaeikum 2021-06-15 github

@Wedge009 Those screenshots above are perfect, thanks for reporting. We'll take a look.

Sshoober420 2021-07-02 github

On current proton experimental, i get the same brightness bug as @zolstarym, even using the new opengl renderer. When trying out Deus Ex with Proton-6.10-GE-1, the brightness bug is fixed.

WWedge009 2021-07-02 github

Sorry I never clarified: the horrible colouring that @zolstarym showed is the same one that I also tried to demonstrate.

By 'brightness bug is fixed' - does Adjust Brightness option still work? Would be interesting to know what GE is doing differently here, if so.

Sshoober420 2021-07-02 github

@Wedge009
If you want to stick to what’s recommended, you should following the pcgamingwiki page for deus ex goty. this especially goes for retro games in general.

https://www.pcgamingwiki.com/wiki/Deus_Ex

When using Proton Experimental as of this post, I get the same brightness bug as @zolstarym, even with the new opengl renderer. I then switched over to Proton-6.10-GE-1 and the brightness bug was fixed.

WWedge009 2021-07-02 github

I'm already aware of pcgamingwiki, thanks. My intention in reporting the bad colouration here was to try to offer feedback for Proton and my testing was only looking at 5.13 and 6.3 as I understand experimental is a moving target (constant development - and given your report not substantially different from 6.3 anyway). Aside from a .NET-based game, DX is the only non-Linux Steam game I have that I cannot play under Proton right now.

At any rate I've finished with DX for now and am replaying HR.

Sshoober420 2021-07-02 github

@Wedge009
Do you use Deus Exe and the unofficial patch V2 like pcgamingwiki suggests?

https://kentie.net/article/dxguide/#downloads

https://www.moddb.com/games/deus-ex/downloads/deus-ex-unofficial-patch-v2

WWedge009 2021-07-02 github

How does one run those things from Proton? Does it actually make a difference to the brightness issue? I've only seen you indicate that GE avoids the brightness problem.

To be clear, no issue with standard renderers when running under Windows. Only an issue when running on Linux with Proton. I understand this GitHub report is to do with Proton's handling of the standard game without use of third-party modifications.

Sshoober420 2021-07-02 github

@Wedge009
You install them like you would on Windows.

Since there’s two different brightness bugs, i should be more specific. Proton Experimental gives me the same washed out white textures as @zolstarym screenshot.

I get the same brightness slider bug you have with Proton-6.10-GE-1, but it’s fixed with Proton Experimental (but with the washed out textures).

WWedge009 2021-07-03 github

I have Wine installed separately - doesn't attempting to run Windows executables under Linux just go to Wine instead of the Proton container? And without Wine, the executables wouldn't run anyway.

I reiterate that my understanding of this GitHub report is not to act as tech support to the game in question but to highlight issues with Proton specifically. Given that my game experience with Windows is quite satisfactory without the use of third-party modifications, Proton should be able to produce the same or at least similar results. Since it is not (at least as of 6.3-5), I am providing my feedback here. I don't understand why third-party modifications continue to be promoted when I don't see them as being necessary or at least a distraction from the Proton-specific issues.

Clarifying the two issues:

  • No response to the Adjust Brightness slider: This happens with Proton 5.13 and from what you describe, 6.10-GE-1. It is resolved with 6.3 and Experimental but also suffers from the below.
  • Colour banding / 'washed out textures': This occurs with 6.3 and Experimental while at the same time resolving the Adjust Brightness slider issue above. It is observed in the screenshots that both @zolstarym and I have included here.

As I originally stated on 14th June, the above issues result in a dilemma. Either struggle with overly dark environments (even accepting that the game is meant to be visually dark by design) or suffer unpleasant rendering artefacts not present in Windows. I understand aeikum and team are continuing to work on this but for the time being I had to make do with playing on Windows instead of Linux.

Sshoober420 2021-07-03 github

@Wedge009
Before I go on I have the same results with vanilla Deus Ex and default renders that you can easily change when going to "Settings", "Display Settings", and finally "Rendering Device...". Ignore the other way i said which requires hitting the T key at the title screen, and then Shift+Tilde to access the console (then "preferences").

If you want to play retro games, you should make it a habit to use community patches. Steam even will include community patches along with the game because of this. System Shock 2 is a great example. Just because you are fortunate to get vanilla Deus Ex running without patches, doesnt mean the next retro game you try will be so easy, which is why i recommend always checking pcgamingwiki, and using community patches from the start.

You also said you are using Revision, which is within itself, a community patched version of Deus Ex, so if you want to discuss Revision, you should create a Proton Github issue page for it, since it has its own unique appid (not 6910).

https://steamdb.info/app/397550/

You thinking Deus Ex is too dark with a certain render is only your opinion. This game was designed with CRTs in mind, so the default brightness for back in 2001 might be a little out of wack in 2021. Of course, the washed out textures in those screenshots are a different story. Minus that, there are alot of things to consider in terms of you thinking Deus Ex is too dark. Brightness levels vary from render too, its so wacky. It starts to come down to taste honestly.

Do you only play Unreal 1 based engine games with a Glide API wrapper only? Do you only play Quake 1 in software mode? Do you only play Doom with Chocolate Doom to preserve the aesthetic?

EDIT:
I should also mention have you tried to change the brightness setting directly via the DeusEx.ini file?

WWedge009 2021-07-03 github

As mentioned several times above I have already tried the various different built-in renderers.

Please understand, I am not a 'newbie'. I have played games as old as the DOS-era from the early 1980s, tinkering with CONFIG.SYS and the like. I use 'community patches' where it is appropriate, which most of the time - at least for what I play - it is not necessary or suitable for my tastes. If DX on Windows does not require 'community patches', then I do not expect that DX via Proton should.

My comments are applicable to DX:GotY, which is what I understand this report to be about. Until and unless I find anything specific to Revision that does not affect GotY, I think it is fair to discuss Revision here. At the very least I think it has more relevance to this Proton discussion than unsupported, third-party modifications.

I do not believe it should be the case that running DX via Proton should require third-party modifications in order to achieve parity with unmodified DX on Windows. Even if you believe it is, you still have yet to confirm to me whether or not these third-party modifications make any difference to the rendering situation in Proton being discussed here.

I have already said that I understand DX is meant to be visually dark. My understanding is the non-functionality of the Adjust Brightness is due to the setting being ignored by older Wine/Proton, thus until Proton 6.3 the setting made no difference in DX. I know of CRTs and have played many games from that era, so if it were the case that the darkness is solely due to CRT vs LCD displays, then I would have encountered this discrepancy in brightness in applications outside of DX, which I have not.

To my knowledge, I do not play any other UE1-based games or anything resembling Quake or Doom, and I fail to see what relevance your questions are here. Please try to focus on the issue at hand, which is Proton's handling of DX:GotY. I appreciate you may be trying to help but increasingly I'm feeling like you're insisting that I should be following your practice of third-party modifications instead of focusing on Proton's handling of the game.

To humour you, I manually changed the Brightness factor in Deus Ex/System/DeusEx.ini from 0.5 to 1.0 - no difference that I can see. Retrying GotY under Proton 5.13-6, there is no appreciable difference from the default of Brightness=0.500000.

Sshoober420 2021-07-03 github

No, you technically cant compare the Revision patchset with goty patchset, especially since each game has its own appid for a reason. The Revision patchset has its own unique D3D render.

Its funny you being so against third party mods, but play Revision, lolol.

Dude, Revision was made because lots of people have trouble getting vanilla Deus Ex to work. You are forgetting how fortunate you are for getting Deus Ex to work vanilla with no mods. Then again, is it REALLY working 100%?

Its easy to understand my correlations. DX is NOT meant to be visually dark. Thats YOUR interpretation of the environment. This has nothing to do with the two brightness bugs present. The default D3D render brightness to one player may look how they remembered it compared to how you played it back then. Again, nothing to do with the actual brightness bugs.

Why, i prefer default brightness. It looks fine to me. I like it to look dark, i play my games dark. it looks like how i played it when i was a kid, very dark on a poopy pc.

Again, still has nothing to do with the actual two brightness bugs present, just that you thinking Deus Ex looks too dark on default D3D is your opinion, not a fact.

EDIT:
You also questioning me how to run things from Proton gave me the impressing that you dont know what youre doing, especially one from the DOS era, wouldnt ask such a question. So pardon my assumption.

WWedge009 2021-07-03 github

I understand your point on Revision, but I am trying to focus on GotY here, as opposed third-party modifications.

And I am not necessarily against third-party modifications, I just don't see the need for them given GotY has been running fine on Windows without it. There's no need to degenerate into juvenile behaviour and mockery. Meanwhile you're completely missing my point that to compare DX on Windows against DX + modifications on Proton is introducing unnecessary variables, not to mention derailing what I understood was supposed to be a technical discussion about running DX on Proton.

Regarding your assertion that DX's default brightness is fine - that's your opinion, okay, that's fine, you're entitled to it. However, for my own assessment, comparing DX with other applications and games, even with its own internal UI, I find it is dark. These are both subjective assessments, just as you accuse me of having an opinion, you are also stating an opinion, not fact. I don't see anything wrong with these opinions, and if there was really anything wrong with considering DX to be too dark then the developers wouldn't have introduced an Adjust Brightness setting in the first place. Just because I don't wish to do things 'your way' with respect to third-party modifications or disagree with your opinion that DX brightness is 'just right' doesn't make my opinion any less valid. I should be able to use applications how I want to just as you should be able to do the same.

The main point I was trying to make from the very beginning, is that the rendering under Proton 6.3 is certainly flawed in spite of enabling the Adjust Brightness functionality. In spite of your repeated insistence on third-party modifications, I was merely trying to highlight this flaw.

I have tried to be constructive here but it's clear you're just continuing to attack me for the sake of doing things 'your way'. Thank you for reminding me why the Internet is such a toxic place.

Kkisak-valve maintainer 2021-07-03 github

Hello @shoober420, while it's okay to discuss game modifications and workarounds in general (as long as they are legal), we're primarily interested in feedback on how vanilla Proton behaves with the version of game available on Steam. @Wedge009's choice to use the game unmodified is completely legitimate feedback for the game.

You're free to point out that there are alternative solutions available for people to try, but feedback on the current out of the box experience is more valuable when it comes to improving Proton.

Sshoober420 2021-07-03 github

You saying you want to focus on goty, but already bringing Revision into the picture, a third party community patch, is contradictory, which is why i mentioned third party mods for goty to begin with.

some windows games have bugs that are native, and then reproduced in proton as well, and then get posted here as being proton bugs, when it’s a bug in windows too. i remember the stalker shadow or chernobyl lighting bug that some thought was proton, but is a bug in the original game.

it was just a way to narrow things down and do testing. if you’re testing revision, which uses third party mods, there’s no reason to be so against deus ex goty with mods, even if it is working for you. it was only for testing purposes.

adding mods to a game doesn’t derail anything, if that was the case, revision would derail then too.

i’m not forcing you to do anything, it’s all for testing the game. all i’m doing is offering recommendations and things to try, there’s no need to be upset over them.

i have been respectful and even apologized for assuming you were a new user. you’re the only one name calling here and being hard to work with.

Sshoober420 2021-07-10 github

Compatibility Report

System Information

These tests were done with the CWDohnal OpenGL renderer.
https://www.cwdohnal.com/utglr/

Symptoms

Proton GE:
Brightness slider doesnt work, but the brightness is more natural looking.
20210710_12h34m57s_grim

Proton Experimental:
Brightness slider works, but brightness is too washed out.
20210710_12h28m30s_grim

Trying to change the brightness via the DeusEx.ini also doesnt work.

EDIT:
I've continued doing testing for Revision on the dedicated Proton Github page.
https://github.com/ValveSoftware/Proton/issues/4958

Sshoober420 2021-07-14 github

Was playing around with Revision and wondered if the new Revision Direct3D 9, OpenGL, and OpenAL renderers would work with the vanilla GotY, and they indeed do work. The new OpenAL sound renderer is fantastic. The audio quality is noticeably better compared to the original Galaxy audio render. It also seems to make the players mouths move faster, and more in sync compared to the original Galaxy audio renderer.

Also, if you want the new OpenAL audio renderer work with GotY, you need to copy over all the dll files that start with “lib” in the “Revision/System”, along with msvcr*.dlls, ALAudio and ALURE32 dlls, and the OpenAL32.dll files.

Sshoober420 2021-07-14 github

Here are some screenshots of the brightness using the Revision D3D9 render on Deus Ex GotY. The brightness slider works on both Proton versions, no washed out textures on either version as well.

GE Log: steam-6910ge.log
Experimental Log: steam-6910ex.log

GE 6.12-1:
20210713_20h03m54s_grim

Experimental:
20210713_20h08m21s_grim

AAsciiWolf 2021-07-28 github

Deus Ex: GotY with Proton 6.3-5, running on Fedora 34 (with Wayland) with Mesa 21.1.4 (using Radeon RX 550 4G). Ingame colors look strange:

deus-ex_colors

(I have 32-bit color depth enabled in the game display settings.)

Did anyone experience similar issues?

Sshoober420 2021-07-28 github

@AsciiWolf
Yes, I did, along with @zolstarym is his post here from above.

https://github.com/ValveSoftware/Proton/issues/798#issuecomment-861041146

WWedge009 2021-07-28 github

Proton GE:
Brightness slider doesnt work, but the brightness is more natural looking.

So in the context of the visual issues, this doesn't appear any different from Proton 5.13.

Proton Experimental:
Brightness slider works, but brightness is too washed out.

This is what I was asking for earlier. Again, no apparent differences from Proton 6.3. So in both cases, no improvement with this 'CWDohnal' renderer.

The audio quality is noticeably better compared to the original Galaxy audio render.

If anything, audio is even more subjective than visuals. Other than lip-sync, is there any measurable improvement from a player's point of view? This might be a distraction from the core visual issues here - unless any perceived shortcoming of audio is not present in Windows, only under Proton.

Here are some screenshots of the brightness using the Revision D3D9 render on Deus Ex GotY. The brightness slider works on both Proton versions, no washed out textures on either version as well.

Interesting. But Revision's D3D9 renderer is broken for me under Proton so unfortunately I can't make use of this.

Edit: Previous tests were on Proton 6.3-4. Retesting on Proton 6.3-5 Revision's D3D9 renderer no longer crashes, but interestingly visuals now exhibit the same behaviour as on Proton 5.13 - ie good colour reproduction but non-working brightness adjustment. Which is a shame because if I got the same behaviour as you, this could have been a viable work-around for playing DX GotY under Proton.

Ingame colors look strange... Did anyone experience similar issues?

Yes, this is precisely why I haven't played DX under Proton.

OOLucasZanella 2021-10-30 github

Picked Deus Ex up today. I've only tried the start of the Training mission so far.

Only problem I've noticed so far with Proton Experimental and Software Rendering is that objects clip through surfaces. On ProtonDB, someone else had the same issues as me. Choosing the other option, it works as expected, except the colors now look exactly like on the screenshot @AsciiWolf provided.

Is there a known solution for this?

Edit: Proton-6.20-GE-1 corrects color issues with Direct3D, it's just quite darker than Software Rendering, brightness settings don't change anything.

deusex

WWedge009 2021-10-31 github

There seems to be a dilemma between bad colouring and a non-functioning brightness setting with recent Proton releases. Apparently the darkness is 'correct' but we are supposed to use other rendering options to 'improve' things. However, more recently I have noticed that the effectiveness of the brightness setting may be affected by playing in 'full screen' vs 'windowed mode' so that might be something else to check.

OOLucasZanella 2021-10-31 github

As far as I tested, full screen, windowed and borderless didn't change anything regarding brightness.

WWedge009 2021-10-31 github

Sorry, was going off memory. Maybe that only applies to the renderers in Revision, then.

FFloFluoro 2022-03-27 github

Hi, now that the Steam Deck is out and using out-of-game tweaks and fixes is less practical on that, I wanted to mention that the brightness and color issues are still a problem out of the box on the most recent version of Proton:

Direct3D renderer, Proton:
image

Direct3D renderer, Windows:
20220327183043_1

Zzolstarym 2022-11-20 github

I just tried the latest experimental on deus ex and unreal and the brightness seems to be working now. Tested with direct3d game engine

Kkisak-valve maintainer 2026-02-09 github

Deus Ex: Game of the Year Edition (6910) Experiences Slower Loading Times on Proton Experimental Compared to Prior Versions

Issue transferred from https://github.com/ValveSoftware/Proton/issues/9478.
@SuperiorDonut posted on 2026-02-08T23:40:45:

Compatibility Report

  • Name of the game with compatibility issues: Deus Ex: Game of the Year Edition
  • Steam AppID of the game: 6910

System Information

I confirm:

  • [Yes] that I haven't found an existing compatibility report for this game.
  • [Yes] that I have checked whether there are updates for my system available.

steam-6910.log

Symptoms

Game load times are twice as long as earlier proton experimental versions.

Also currently the case in comparison to the following proton versions: 9.0-4, 8.0-5, Hotfix

As seen in this video: https://www.youtube.com/watch?v=ZbVLD-OCgkU

Reproduction

  1. Launch 'Deus Ex: Game of the Year Edition' with compatibility turned on, and select proton experimental
  2. Skip the tutorial and intro
  3. Load into the game, then quicksave
  4. Quickload the game
  5. Launch the game again, this time with proton v9.0-4 selected
  6. Repeat steps 2-4
  7. You will notice that the loading has become slightly shorter

When you use mods for the game, which typically increases system-load (generally via more enemies and so on), these minor differences compound. For instance, a 3 second load on v9.0-4 will become more like a 6 second load on proton experimental, when map loads become longer. In other words, proton experimental is roughly doubling the load times compared to proton v9.0-4 (and the other versions I tested, 8.0-5 and hotfix)

Proton versions

Upstream links

DLLs