Created attachment 357613 [details]
Description of problem:
Screen is flashing
Version-Release number of selected component (if applicable):
00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
boot without nomodeset
Steps to Reproduce:
Screen 0: minimum 320 x 200, current 1440 x 900, maximum 8192 x 8192
LVDS1 connected 1440x900+0+0 (normal left inverted right x axis y axis) 367mm x 230mm
VGA1 disconnected (normal left inverted right x axis y axis)
DP1 disconnected (normal left inverted right x axis y axis)
Created attachment 357614 [details]
I am closing this since this report seems dupe-duplicate.
i915.powersave=0 workaround does work for now...
*** This bug has been marked as a duplicate of bug 517560 ***