[Bug 91800] [bisected] flickering in The Talos Principle

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91800

--- Comment #3 from Grazvydas Ignotas <notasas at gmail.com> ---
OK it does depend heavily on resolution and settings. Playing along with them
suggests that I originally selected the worst combination by chance as most
changes make the issue go away.

The "bad" settings are:
resolution: 1440x900
graphics options -> performance: every setting on medium, max fps unlimited

The issue is most visible on the "attract mode" - start the game, hit Esc on
the company logos and wait for it to show several different scenes. The first
scene (a wall with some drawings) is flickering and stuttering. The second one
(architecture an a small pool) is stuttering even more but flickering less (fps
counter shows ~50 but the framerate feels like it's below 10fps). The third
scene with a statue is ok, and 4th one with a pool stutters heavily again.

It does seem to be timing related and if your machine is rendering
faster/slower I suspect you might not hit it, but moving to 7ae299be60 clearly
solves the issue for me with the "bad" settings.

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