https://bugs.freedesktop.org/show_bug.cgi?id=79806
--- Comment #4 from Gabor Enyedi <enyecz at gmail.com> --- (In reply to comment #3) > > Workaround: when resume, execute "echo auto > > > /sys/class/drm/card0/device/power_dpm_force_performance_level". > > How did you do that? It gives me "echo: write error: Invalid argument" on > kernel 3.15 It simply works without any trick. It also works with stock kernel 3.13. Are you sure that you have the same ATI card? What I have found since I have posted the bug is that sometimes (very rarely) this simple workaround is not enough. Now, I use the following: echo low > /sys/class/drm/card0/device/power_dpm_force_performance_level echo battery > /sys/class/drm/card0/device/power_dpm_state echo auto > /sys/class/drm/card0/device/power_dpm_force_performance_level echo balanced > /sys/class/drm/card0/device/power_dpm_state -- 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/20140704/2c5837ea/attachment-0001.html>