ValveSoftware / ValveSoftware/Proton
Fullscreen doesn't take into consideration xrandr scaling
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- Dominant language
- C++
- Stars
- 32.8k
- Forks
- 1.6k
- PR merge metrics
- PR metrics pending
Description
Hello, I'm using the linear scaling feature of xrandr to fit 1920x1080 linearly to my 4k screen. However, on some games, (specifically Underrail and Pillars of Eternity II in this case), this scaling is ignored when the game is at fullscreen and the game will still still scale from 1920x1080 to 4k on its own, causing only the top left quarter of the game to be visible (and not use linear scaling.)
I've tested this with 4.11-4 and 4.2-9 with the same issue.
Investigating other options that have a "Borderless Fullscreen" and separate "Fullscreen" mode, it seems to be a problem with Fullscreen as Borderless Fullscreen fits to the window fine.
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Research direction
Reproduce the issue using xrandr linear scaling with the Underrail or Pillars of Eternity II fullscreen mode, then compare it with Borderless Fullscreen. Trace Proton's fullscreen and display-scaling handling; the fix is complete when fullscreen respects the configured scaling without cropping the display.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- linux
- Domain
- desktop-dev, operating-systems
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100