ValveSoftware / ValveSoftware/Proton

DOOM 2016 (379720) drops frames during mouse movement

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Game compatibility Regression
Dominant language
C++
Stars
32.8k
Forks
1.6k
PR merge metrics
PR metrics pending

Description

System Info: https://pastebin.com/t6CreLgS

System Info Brief:

Ubuntu 18.04.1 LTS
Ryzen 5 1400
RX 580
Mesa 19.0.0 drivers (Padoka PPA)
16 GB DDR4-2660 Dual Channel

As stated in the title, looking around with the mouse causes the framerate to drop to refresh rate (75 FPS). Stopping mouse movement (ie, not looking around anymore) allows the game to reach 150+ FPS in the Vulkan API.

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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

Reproduce DOOM 2016 (379720) on Ubuntu 18.04.1 with the Vulkan API while moving the mouse, using the linked system information as the baseline. Compare frame rates during and after mouse movement; the report names no source file, entry point, or test, so completion would require identifying and validating a Proton-side cause or documenting that the issue is external.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp, linux, ubuntu
Domain
game-dev, operating-systems, performance
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

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