Suspend / Resume is now working for me, too. The following xorg.conf
configuration caused my system to still crash on resume:
Section "Device"
Identifier "Configured Video Device"
Option "DynamicClocks" "true"
Option "NoDri" "true"
EndSection
After deleting this configuration (I had it for power saving) suspend /
resume works, except after a login / logout I have the same screen
issues as mentioned by Jan Schneider - also gdm will start with the
wrong resolution.
I also noticed that the system seems to draw more power and the fan is
louder after the resume. (I also had this issue before with the single
core workaround)
--
Resume from suspend doesn't work on the Mobile 4 Series chipsets
https://bugs.launchpad.net/bugs/276943
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