<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - GPU HANG: ecode 7:0:0x86dfbff9, in compiz [1938], reason: Ring hung, action: reset" href="https://bugs.freedesktop.org/show_bug.cgi?id=90183#c4">Comment # 4</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - GPU HANG: ecode 7:0:0x86dfbff9, in compiz [1938], reason: Ring hung, action: reset" href="https://bugs.freedesktop.org/show_bug.cgi?id=90183">bug 90183</a> from <a class="email" href="mailto:jens-bugs.freedesktop.org@spamfreemail.de" title="Jens <jens-bugs.freedesktop.org@spamfreemail.de>"> Jens</a> <pre>To be quick (and to avoid any errors during compilation that I might introduce) I tested the mainline kernels available from Ubuntu at kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-nightly. Here are my results so far. 2015-04-10-vivid: Boots fine and does S4 suspend/resume fine three times in a row (so far) including restauration of X11 desktop. No load testing yet. 2015-05-11-vivid: Boots fine, S4 suspend works as well, after resume I get the "GPU HANG" message with a backtrace. and X11 seems to restart (after ~10seconds I get kicked back to the login screen). 2015-04-14-vivid: Boots fine, S4 suspend works as well, after resume I get the "GPU HANG" message with a backtrace. and X11 seems to restart (after ~10seconds I get kicked back to the login screen). 2015-04-15-vivid: Boots fine, S4 suspend works as well, after resume I get the "GPU HANG" message with a backtrace. and X11 seems to restart (after ~10seconds I get kicked back to the login screen). 2015-04-21-vivid: Does not boot. Last message on console: "Ignoring BGRT: Invalid status 0 (expected 1). But I think all the other kernels show this too but it is replaced too quickly by the desktop. 2015-04-29-vivid: Does not boot cleanly - desktop does not appear, but I can get to the text console. In syslog I get the "GPU HANG: ecode 7:2:0x00d7ffe9, in Xorg" message, even without a S4 suspend. I saved the full dmesg output if required. After a S4 suspend, the symptom is the same as in the 2015-04-21 kernel (does not boot). 2015-05-01-vivid: Boots fine, but when I do S4 suspend via 'pm-hibernate', the machine seems to shut off but does not power down (all fans are quiet but the power LED stays on). After a forced power cycle (4 seconds on power button) there is a normal reboot. According to syslog the machine did not even try to resume. Does this help already? Or do I need to start bisecting between 2015-04-10 and -11? Or test something else altogether? Thank you for supporting!</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>