<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [KBL] "enable_rc6" parameter deprecation brings back freezing" href="https://bugs.freedesktop.org/show_bug.cgi?id=105962#c50">Comment # 50</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [KBL] "enable_rc6" parameter deprecation brings back freezing" href="https://bugs.freedesktop.org/show_bug.cgi?id=105962">bug 105962</a> from <a class="email" href="mailto:timo.teras@iki.fi" title="Timo Teräs <timo.teras@iki.fi>"> Timo Teräs</a> <pre>Created <a href="attachment.cgi?id=144792" name="attach_144792" title="various dmesg w/ drm.debug=0xe on dell laptop">attachment 144792</a> <a href="attachment.cgi?id=144792&action=edit" title="various dmesg w/ drm.debug=0xe on dell laptop">[details]</a> various dmesg w/ drm.debug=0xe on dell laptop Find attached the dmesg of boot up, successful power down/up and finally from the crash. After several attempts I managed to get two WARN_ON() back traces on it, so it might actually be very useful. The power off is done by XFCE Power Manager: Settings > Power Manager > Display tab > Display power management (enabled, with switch off at 1 minutes). I then wait for 1 minute for power off. Power on is attempted by typing on keyboard. It seems that sometimes the crash happens pretty soon after powering display off (e.g. system crash can happen earlier than 60 seconds). It seems to be total hang as I had a little loop copying uptime to a file and running 'sync'. And that stops usually around the time display wake up is attempted.</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> </ul> </body> </html>