https://bugs.freedesktop.org/show_bug.cgi?id=99730
--- Comment #2 from Grigori Goronzy <g...@chown.ath.cx> ---
> At least on Intel SKL with latest Mesa, something weird happens when
> switching between gfx quality levels. Trying e.g. to switch to "Very high"
> level (by exiting the video options with ESC) freezes the game for few
> minutes after which it back to viddeo options.
The game seems to recreate *all* shaders in this case. The game also starts a
prompt to ask the user to accept the new settings with a 30 second timeout and
if there's no input in the meantime, it will reset to the old settings.
However, due to the shader compiler hang, the prompt never actually displays.
This used to be a problem with radeonsi, but with the more recent optimizations
to shader compilation, it now typically takes less than 30 seconds to recover
from the hang, so it mostly works.
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