https://bugs.freedesktop.org/show_bug.cgi?id=101976
--- Comment #5 from Pablo Estigarribia pablodav@gmail.com --- After reading many many many pages around the web and trying everything I could try I have got some config that doesn't crash with white/blank screen or background screen.
command tested:
MESA_GL_VERSION_OVERRIDE=2.1 MESA_GLES_VERSION_OVERRIDE=2.0 MESA_NO_ERROR=1 MESA_EXTENSION_MAX_YEAR=2014 glmark2
Looks like there is no guide for people new in debugging mesa3d, so I had to spend lot of time looking on the web and trying to get tips to know what I can try here.
debugging tips doesn't helps for newcomers to mesa3d debuggin: https://www.mesa3d.org/debugging.html
First tried with some vars shown in:
https://launchpad.net/~paulo-miguel-dias/+archive/ubuntu/mesa
I was also looking in the information shown here:
https://www.x.org/wiki/RadeonFeature/#index12h2
Then finally used first test with:
https://www.mesa3d.org/envvars.html
I have put the first command I tried, but still don't know what should I really use.
Probably the issue is with MESA_GL or MESA_GLES not fully implemented for the version automatically recognized for the driver (from glxinfo not using the vars to force the version):
Max core profile version: 4.5 Max compat profile version: 3.0 Max GLES1 profile version: 1.1 Max GLES[23] profile version: 3.1
Is there any documentation that could help me assign the bug-free GL version should I use?
I will be trying different versions until get the bigger and will comment again.
I got blank screen also watching youtube videos, it seems to be some random bug that I couldn't identify yet but hope this information could help some other more familiar with mesa3d could.