<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [gen4] GPU Crash During Google Chrome Operation" href="https://bugs.freedesktop.org/show_bug.cgi?id=80568#c57">Comment # 57</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [gen4] GPU Crash During Google Chrome Operation" href="https://bugs.freedesktop.org/show_bug.cgi?id=80568">bug 80568</a> from <a class="email" href="mailto:shacharr@gmail.com" title="shachar <shacharr@gmail.com>"> shachar</a> <pre>I did few tests to see if I can narrow down the cause of the issue, here are my insights so far: - It seems that the bug is triggered only if AccelMethod is SNA. Setting the AccelMethod to UXA seems to be hiding the issue with chrome/chromium. Issue still shows up when running glmark2 -b ideas (though this might be a different issue) - I tried changing the Xorg/XFree driver versions. I used the freedesktop git, and went all the way back to 2.20.0, where SNA was officially introduced. Bug is reproducing there as well. I attach a small patch to make the code from 2.20.0 compile on modern Xorg version. - Last April was when Ubuntu released their new "long term support" version, this (and derivatives) might explain part of the spike in the bug reports at this point, as large number of people jumped ship to have SNA enabled by default in their distro - The ArchLinux page on Intel graphics ( <a href="https://wiki.archlinux.org/index.php/Intel_graphics">https://wiki.archlinux.org/index.php/Intel_graphics</a> ) contains few pointers to additional tweaking knobs to try out. Going to try them next when I have some free time.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>