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X server crash in tactical missions

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EOF:
Hello,

each time I start a tactical mission, my x server crashes within seconds.

I am trying to run UFO:AI with a laptop running Ubuntu 10.04 and an intel graphics card; lspci says

--- Code: ---00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 03)

--- End code ---
According to glxinfo, direct rendering is on:

--- Code: ---direct rendering: Yes
OpenGL renderer string: Mesa DRI Intel(R) 965GM GEM 20091221 2009Q4

--- End code ---

My UFO:AI version is 2.4-dev, with the hash of the latest commit being
9f4e83406a958fce1d101ccde90fb02e0043a33f
if that helps.

The ufo log file I attached looks quite innocuous to me, but I also get the following error message in my Xorg.0.log:

--- Code: ---Fatal server error:
Failed to submit batchbuffer: Input/output error


Please consult the The X.Org Foundation support
         at http://wiki.x.org
 for help.
Please also check the log file at "/var/log/Xorg.0.log" for additional information.

--- End code ---

Does someone have any suggestions? Thanks in advance.

bayo:
If your driver crash, i dont think we can do anything. Maybe u can test another driver. Or disable shader or thing like that...
 

EOF:
Thanks a lot, disabling shaders did indeed help.

nick87720z:
Similar crash, but with different conditions, with 2.6-dev.
Exact error seems to be localized to russian:
i965: Failed to submit batchbuffer: ?????? ?????/??????
What i can understand as input/output error.

I believed long time it is driver bug unless found intereting statement:
https://www.reddit.com/r/opengl/comments/89twa8/how_to_work_around_graphics_driver_bugs_i965/

--- Quote ---NVidia tends to have the most forgiving drivers, in my experience. AMD has less forgiving drivers. Intel can be downright cruel at times.

--- End quote ---

On my system it happens after longer time. I have no exact idea of reproducing - last time i played "village" map on very hard, starting game right from point when firebird headed to mission. I made 2 or 3 restarts due to some mistakes, at last managed to eliminate 2/4 enemies and find 3rd in far house, when i got killing freeze - i had another one on same attempt, but it did not crash, probably because i unintentionaly moved camera, because after unlock camera where in one of map corners.

Just before very hard gameplay (my first attempt... btw, whatever they say - unwounded soldier survives single plasma pistol hit even on v-hard) i made standard, trying new for me play order at geoscape, and sometimes i had several tactical missions before crash.

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