<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#c51">Comment # 51</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:imre.deak@intel.com" title="Imre Deak <imre.deak@intel.com>"> Imre Deak</a> <pre>(In reply to Timo Teräs from <a href="show_bug.cgi?id=105962#c50">comment #50</a>) > 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. Could you try if you can still reproduce the same problem when booting with i915.enable_dc=0 ?</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>