Red Hat Bugzilla – Bug 517560
Brightness flickering in rawhide
Last modified: 2018-04-11 05:23:58 EDT
Description of problem:
As described here (http://mjg59.livejournal.com/114159.html), I am now seeing slight brightness flickering in X with rawhide (it does not occur in runlevel 3 until I start X):
Hardware is Lenovo T500 (running on Intel video) with WUXGA+ screen.
[spot@pterodactyl ~]$ xrandr
Screen 0: minimum 320 x 200, current 1920 x 1200, maximum 8192 x 8192
VGA1 disconnected (normal left inverted right x axis y axis)
LVDS1 connected 1920x1200+0+0 (normal left inverted right x axis y axis) 331mm x 207mm
1920x1200 60.0*+ 50.0
1600x1200 85.0 75.0 70.0 65.0 60.0
1400x1050 74.8 60.0
1280x1024 85.0 75.0 60.0
1280x960 85.0 60.0
1024x768 85.0 75.0 70.1 60.0
800x600 85.1 72.2 75.0 60.3 56.2
640x480 85.0 72.8 75.0 59.9
DP1 disconnected (normal left inverted right x axis y axis)
Reassigning to kernel like the livejournal says, boss. :-)
Can you try booting with "i915.powersave=0" that should at least sort out the problems until things are happy and fixed again.
*** Bug 517803 has been marked as a duplicate of this bug. ***
I would guess, that bug which is workarounded by i915.powersave=0 argument is not general kernel one. I can reproduce here as well.
The relevant code was disabled. If you see screen flickering with rawhide, please open a separate bug.