screen not lighting up on resume when using kms
Submitted by eruditehermit
Assigned to Default DRI bug account
When I try to suspend and resume with kernel mode setting, I am able to suspend but on resume, the screen is completely black and the laptop screen does not turn back on. The screen doesn't emit any light as it does when the screen shows a black colour. I am able to perform a VT switch with Ctrl+Alt+F1 and reboot the machine with ctrl+alt+del.
Laptop Dell Inspiron 8600
Radeon Mobility 9600 M10/M11 RV350 4E50
radeon driver git 2009/07/29
the debug and messages files are with drm.debug=15