Proton 9 and experimental broke full screen in many games.

[DekosAnjo]

This only happens on my notebook, it's an Nvidia RTX 3050 and AMD integrated graphics card

Proton 9: Proton 8: Proton 9: Proton 8: Proton 9: Proton 8:

[kisak-valve]

Hello @DekosAnjo, please add PROTON_LOG=1 %command% to a couple game's launch options and attach the generated $HOME/steam-$APPID.log to this issue report as a file. (Proton logs compress well if needed.) Also, please copy your system information from Steam (Steam -> Help -> System Information) and the contents of Steam Runtime Diagnostics from Steam (Steam -> Help -> Steam Runtime Diagnostics) and put them in a gist, then include a link to the gist in this issue report.

[DekosAnjo]

Here: https://gist.github.com/DekosAnjo/c6c304d3d3da3d2bd3e2ce3a5bcc4f41 https://gist.github.com/DekosAnjo/c6c304d3d3da3d2bd3e2ce3a5bcc4f41#file-system-information https://gist.github.com/DekosAnjo/c6c304d3d3da3d2bd3e2ce3a5bcc4f41#file-steam-runtime-diagnostics https://gist.github.com/DekosAnjo/c6c304d3d3da3d2bd3e2ce3a5bcc4f41#file-steam-13240-proton8 https://gist.github.com/DekosAnjo/c6c304d3d3da3d2bd3e2ce3a5bcc4f41#file-steam-13240-proton9-log https://gist.github.com/DekosAnjo/c6c304d3d3da3d2bd3e2ce3a5bcc4f41#file-steam-6220-proton8 https://gist.github.com/DekosAnjo/c6c304d3d3da3d2bd3e2ce3a5bcc4f41#file-steam-6220-proton9

[AJuujarvi]

@DekosAnjo Can you go to your systems display settings and let me know if it shows 2 displays there? Additionally, can you run the command xrandr in a terminal and upload the output please?

I am seeing a DISPLAY1 and a DISPLAY2 in your system information, with one of them having some weird settings. Those could be leading to your weird display issues even if it appears regressive within Proton.

[DekosAnjo]

It's a notebook. I connect the HDMI to use the external display and use Super+P to use just the second display. I tested some things, and I hope this brings some light:

HDMI connected + extended display: Doesn't work
HDMI connected + just external display: Doesn't work
HDMI connected + just internal display: Doesn't work
Just internal display: Works

So, it seems to have something to do with the HDMI.

xrandr:

Screen 0: minimum 8 x 8, current 2560 x 1440, maximum 32767 x 32767
HDMI-0 connected primary 2560x1440+0+0 (normal left inverted right x axis y axis) 697mm x 392mm
   3840x2160     30.00 +  29.97    25.00    23.98
   2560x1440     59.95*
   1920x1080     60.00    59.94    50.00    29.97    23.98
   1680x1050     59.95
   1600x900      60.00
   1440x900      59.89
   1280x1024     75.02    60.02
   1280x800      59.81
   1280x720      60.00    59.94    50.00
   1152x864      75.00
   1024x768      75.03    70.07    60.00
   800x600       75.00    72.19    60.32    56.25
   720x576       50.00
   720x480       59.94
   640x480       75.00    72.81    59.94
eDP-1-0 connected (normal left inverted right x axis y axis)
   1920x1080    144.00 +  60.00
   1680x1050    144.00
   1280x1024    144.00
   1440x900     144.00
   1280x800     144.00
   1280x720     144.00
   1024x768     144.00
   800x600      144.00
   640x480      144.00
DisplayPort-1-0 disconnected (normal left inverted right x axis y axis)
DisplayPort-1-1 disconnected (normal left inverted right x axis y axis)
DisplayPort-1-2 disconnected (normal left inverted right x axis y axis)
DisplayPort-1-3 disconnected (normal left inverted right x axis y axis)
DisplayPort-1-4 disconnected (normal left inverted right x axis y axis)

[AJuujarvi]

@DekosAnjo This does help give some possible insight into the problem. This is something we will try to look into. Can you grab me one more log of the failing setup by running PROTON_LOG=+event,+x11drv,+x11settings,+win,+system,+fshack %command% please?