<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - glmark2 random blank or background only screen freeze over mesa3d 17.1 and 17.3 with radeon rx550 AMD POLARIS12" href="https://bugs.freedesktop.org/show_bug.cgi?id=101976#c5">Comment # 5</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - glmark2 random blank or background only screen freeze over mesa3d 17.1 and 17.3 with radeon rx550 AMD POLARIS12" href="https://bugs.freedesktop.org/show_bug.cgi?id=101976">bug 101976</a> from <a class="email" href="mailto:pablodav@gmail.com" title="Pablo Estigarribia <pablodav@gmail.com>"> Pablo Estigarribia</a> <pre>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: <a href="https://www.mesa3d.org/debugging.html">https://www.mesa3d.org/debugging.html</a> First tried with some vars shown in: <a href="https://launchpad.net/~paulo-miguel-dias/+archive/ubuntu/mesa">https://launchpad.net/~paulo-miguel-dias/+archive/ubuntu/mesa</a> I was also looking in the information shown here: <a href="https://www.x.org/wiki/RadeonFeature/#index12h2">https://www.x.org/wiki/RadeonFeature/#index12h2</a> Then finally used first test with: <a href="https://www.mesa3d.org/envvars.html">https://www.mesa3d.org/envvars.html</a> 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.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>