Display flickers when setting power_profile
Submitted by Christoph Brill
Assigned to Default DRI bug account
When calling something like
echo "low" > /sys/class/drm/card0/device/power_profile
my display flickers a single time. This is okay-ish, but on Microsoft Windows the clock changes do not cause such a flicker. There has to be some kind of trick to achieve that and it would be great if this would work an Linux, too.
Tested on vanilla kernel 2.6.39 with libdrm 2.4.26 and xf86-video-ati 6.14.2.