https://bugs.freedesktop.org/show_bug.cgi?id=82889
--- Comment #7 from Samir Ibrad?i? <sibradzic at gmail.com> --- I see this happening on Radeon HD 7950, kernel 3.13, which has the radeon dpm enabled by dafault. It is intermittent, happens on ~30% boots, and causes hang followed by reboot (no panic or oops msgs). Unfortunately, I could only catch the dmesg output via serial, when my machine hangs, kernel logs are not even saved to the disk. Now, I see "[drm:si_dpm_set_power_state] *ERROR* si_disable_ulv failed" on serial only when ignore_loglevel kernel parameter is unset. Machine will hang ad reboot each time I spot it. I attached here the dmesg with ignore_loglevel and drm.debug=1 params, both failure and ok cases, for comparison. When failing, the machine just hangs breefly, and reboots, right after "[drm] pitch is 7680" message. With radeon.dpm=0 parameter, this problem NEVER happns! -- You are receiving this mail because: You are the assignee for the bug. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/dri-devel/attachments/20140830/f73b5e58/attachment-0001.html>
