<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#c59">Comment # 59</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:alexsecret@hotmail.com" title="Alex <alexsecret@hotmail.com>"> Alex</a> <pre>(In reply to shachar from <a href="show_bug.cgi?id=80568#c57">comment #57</a>) > 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. I'm really surprised to see that switching to UXA really helped you because that exact test was the very first I did when the bug first appeared and it didn't work at all. Actually, I didn't even have to visit the Web Store in order to produce it. I just attempted to watch a random video on Youtube and the screen went black at once. I didn't even need a second test. :)</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>