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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [i965] Compiler backend uses too much stack with Alien: Isolation"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93840#c35">Comment # 35</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [i965] Compiler backend uses too much stack with Alien: Isolation"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93840">bug 93840</a>
from <span class="vcard"><a class="email" href="mailto:d.spitznagel@goodbytez.de" title="Darius Spitznagel <d.spitznagel@goodbytez.de>"> <span class="fn">Darius Spitznagel</span></a>
</span></b>
<pre>(In reply to _archuser_ from <a href="show_bug.cgi?id=93840#c34">comment #34</a>)
<span class="quote">> FYI:
> Mesa 17.0.1 on Haswell with Kernel 4.10.1 on arch:
>
> Without overrides I get the incompatibility warning and crash while loading
> the menu, by disabling the shader prewarmer in
> ~/.local/share/feral-interactive/AlienIsolation/preferences
> (EnableShaderWarmer / EnableShaderWarmerPredraw = 0) the game starts and is
> playable (very fast load times, bad hickups as in game shaders are compiled
> on the fly?)
> The prewarmer seems to compile all shaders for the game in one go, maybe
> that is a reason for such a huge running shader program ?</span >
I can confirm it's working without Matts patch this way.
Now I need less than 1 minute to get into game from save.
You are right... now some shaders get compiled when needed on the fly when you
enter some rooms/floors and cause stuttering.
I also see the little flashing white boxes I have reported in <a href="show_bug.cgi?id=93840#c15">comment 15</a>.
It seems something is not rendered correctly?!
I will try enabling/disabling some effects and report back.
The only difference is that I don't get an incompatibility warning and I also
use Mesa 17.0.1 now.
My kernel is 4.9.13 on Haswell Iris Pro 5200.
Eero, could you check your Skylake system with "EnableShaderWarmer" and
"EnableShaderWarmerPredraw" set to 0 (disabled)?
Nice catch _archuser_:)</pre>
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