Created an attachment (id=12983)
Register dump during blank screen
I finally managed to get the bug to recur. This time the screen turned straight white. This time I managed to SSH in to the machine and grab a register dump as well. Moreover, I can confirm that suspending and resuming the machine fixes the issue. Additionally I know for a fact that backlight control is not the issue:
1) When I allowed the machine to sit idle, I could see gnome-power-manager eventually dim the display
2) My machine does not rely on the GPU for backlight control.
I hope this helps. If there's anything else necessary for debugging, just ask.
Created an attachment (id=12983)
Register dump during blank screen
I finally managed to get the bug to recur. This time the screen turned straight white. This time I managed to SSH in to the machine and grab a register dump as well. Moreover, I can confirm that suspending and resuming the machine fixes the issue. Additionally I know for a fact that backlight control is not the issue:
1) When I allowed the machine to sit idle, I could see gnome-power-manager eventually dim the display
2) My machine does not rely on the GPU for backlight control.
I hope this helps. If there's anything else necessary for debugging, just ask.
- Ben