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Proton 5.13 on Steam Flatpak doesn't run games

protonclosed
ValveSoftware/Proton#4268 · opened 2020-10-16 by odesb · updated 2020-11-15 · 10 comments · github
Oodesb 2020-10-16 github

Games tested:

  • Age of Empires 2: Definitive Edition
  • Resident Evil 7
  • Prison Architect
  • Dota 2

All games crash at boot; with Proton 5.0-9 I can run them. My distribution of Steam is the Flatpak one.

Age of Empires 2: DE flatpak log
System Information

JJohn-Gee 2020-10-16 github

Is it because 5.13 uses Pressure Vessel? Maybe a container inside a container is no-go.

SSporif 2020-10-16 github

Pressure Vessel is blocked by Flatpak's seccomp policy: https://github.com/flatpak/flatpak/blob/7d30de344c2065d95aa444b8a59ae0fb44a06929/common/flatpak-run.c#L2681

Jjomarocas 2020-10-16 github

is aduplicated and is not related by flatpak, in general no working

Oodesb 2020-10-17 github

I confirm it is caused by flatpak. I uninstalled from Flatpak and installed the distro-supplied package (Fedora 32). Works now!

Aannulen 2020-10-18 github

Is it because 5.13 uses Pressure Vessel? Maybe a container inside a container is no-go.

Is there any information on what is that "Pressure Vessel" and what system requirements does it have? Or is it possible to disable it? I'm using Steam on Gentoo without any flatpacks and Proton 5.13 fails to start anything.

JJohn-Gee 2020-10-19 github

You can find this link in the release notes:

https://steamcommunity.com/app/221410/discussions/0/1638675549018366706/

Your issue may be that Pressure Vessel blocks not only containers like flatpak, but also Vulkan overlays like vkbastalt and mangohud. I believe there is some workaround to disable Pressure Vessel, but it'd be best for Valve to provide an option (or not block stuff).

Kkisak-valve maintainer 2020-10-29 github

Closing in favor of #4283. Please continue the discussion on that issue report.

Nnickavem 2020-11-15 github

Sorry about reopening an old issue, but I can't hyperlink or find #4283.

I love the Steam flatpak (and maybe even hope valve upstreams it at some point 😉) and I really hope this issue gets fixed soon. Community Proton Builds built on the actual flatpak runtime seem to bypass a lot of these issues. This can easily be installed with flatpak install com.valvesoftware.Steam.CompatibilityTool.Proton and should show up with all the other proton versions in Force the use of a specific compatibility tool.

Kkisak-valve maintainer 2020-11-15 github

Hello @nickavem, https://github.com/ValveSoftware/Proton/issues/4283 has moved to https://github.com/ValveSoftware/steam-runtime/issues/294 because this is an issue with Steam Linux Runtime - Soldier.

Nnickavem 2020-11-15 github

Ah, thank you for clarifying. Think I should cc this over there?

Sent from my desktop.
Andrew "Andy" James Thurman
980-333-5159

On Sun, Nov 15, 2020 at 07:56, kisak-valve [email protected]
wrote:

Hello @nickavem https://github.com/nickavem,
https://github.com/ValveSoftware/Proton/issues/4283 has moved to
ValveSoftware/steam-runtime#294
https://github.com/ValveSoftware/steam-runtime/issues/294 because
this is an issue with Steam Linux Runtime - Soldier.

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