ValveSoftware / ValveSoftware/Proton

Wine virtual desktop completely broken in Proton 5.13+ with fullscreen hack

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C++
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Description

With Proton 5.13+ (and experimental), when using wine virtual desktop, no matter what resolution I set, it seems to be stuck in the bottom right corner, often having the game go 60% off screen etc, or if running windowed, it may even go completely outside the wine window!

explorer exe_2021-03-15_01-30-15
explorer exe_2021-03-15_01-32-02
explorer exe_2021-03-15_01-42-42

The first two images have the virtual desktop at 2560x1440, and the other one at 1280x720, where the "action" goes outside the real area.
FWIW this doesn't happen with Proton-GE 6.1.

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No files, tests, or entry points are named. Start by reproducing the virtual-desktop behavior with Proton 5.13+ and the fullscreen hack at the reported resolutions, then compare it with Proton-GE 6.1; done means the game remains within the configured virtual desktop and window bounds.

Written by the indexing model from the issue text.

Assessment

Domain
desktop
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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