protonscr

Vertical mouse movement glitch

protonopen
ValveSoftware/Proton#976 · opened 2018-08-30 by XakepSDK · updated 2026-01-27 · 6 comments · github
XXakepSDK 2018-08-30 github

I have troubles with vertical mouse movements in some games.
These glitches feels like when you move optical mouse on a bad surface. Like game just ignores mouse input every N frames. If i move mouse vertical and horizontal - this happens with horizontal movement too, but if only horizontal - no issue.

This happened for me with:
F.E.A.R
S.T.A.L.K.E.R.: Shadow of Chernobyl

Most horrifying is in F.E.A.R.
In stalker it feels like your pointer is in bottom screen edge and can't move lower, but if you move your mouse bit faster, it moved down.

This issue may be related with this: https://github.com/ValveSoftware/Proton/issues/831
BUT this issue isn't resolved by changing resolution to native - it just feels bit less horrifying.

My specs: https://gist.github.com/XakepSDK/1c0873e69dd836e190105794ab729679
Proton: 3.7-3
Built: Aug 29 2018, at 20:07:05

XXakepSDK 2018-08-31 github

UPD:
I started gnome wayland session and through xwayland, seems, issue is less horrifying.
Bug isn't gone, but F.E.A.R is at least playable.

Llieff 2018-09-03 github

You have wired or wireless mouse? I have similar issue with MX1000 mouse. Base station reset and reconnect fixes this.

XXakepSDK 2018-09-03 github

Wired mouse

Vvblanton 2018-11-03 github

I had this issue with Bioshock. I think it's because I increased resolution in game and then kept playing. Restarting the game after the increasing the resolution completely fixed this.

RRabcor 2026-01-26 github

Happening on wizardry 8 as well on proton 10.0-3, which is quite unfortunate considering it's the only version of proton since 5.13 that works with all the game's renderers. It's a regression btw, did not happen on any proton version prior with that game.

Edit: It was fixed in 10.0-4!

Proton versions

Upstream links