<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - Random GPU lockup on Fedora 25 Wayland & X sessions with Mobility Radeon HD 5650/5750 Opensource drivers" href="https://bugs.freedesktop.org/show_bug.cgi?id=99195#c10">Comment # 10</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - Random GPU lockup on Fedora 25 Wayland & X sessions with Mobility Radeon HD 5650/5750 Opensource drivers" href="https://bugs.freedesktop.org/show_bug.cgi?id=99195">bug 99195</a> from <a class="email" href="mailto:nowaker@geozone.pl" title="Damian Nowak <nowaker@geozone.pl>"> Damian Nowak</a> <pre>Hey @Michel, I'll chime in. I've had Radeon HD 7870 for several years now. "ring 0/3 stalled for more than 10000+msecs" was my worst nightmare for quite some time (see <a class="bz_bug_link bz_status_RESOLVED bz_closed" title="RESOLVED FIXED - screen goes blank, Linux hangs - Radeon 7870, Gallium, Glamor" href="show_bug.cgi?id=65963">https://bugs.freedesktop.org/show_bug.cgi?id=65963</a>). Some Mesa versions were totally broken because of this happening way too often (as in #65963). Most Mesa versions were good, as in: it doesn't happen *that* often but still happens (e.g. every month or so). Such a low occurrence rate of the error makes debugging or bisecting not possible, thus it's not even worth reporting it here and taking Michel's or Alex's time. But yet - yes, it does happen every once in a while. Over the years, here's what I found to be a factor in ring 0/3 stalling, and by a "factor", I mean something that makes this problem happen a little more often than normally but still beyond reproducibility. 1. radeon.dpm=1 2. switching screens (CTRL+ALT+F1..F7) Hope this helps, somehow.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>