GNOME Bugzilla – Bug 648138
Issue when swithing from/to dock station with external monitor
Last modified: 2012-10-25 21:37:38 UTC
I have a laptop x200s with a dock station connected to an external monitor. My latop was not on the dock station and I've set it to suspend. Later I plugged it and then wakeup, the external screen showed corrupted image, each pixel was different color. ctr-alt-f1 switched the laptop monitor to tty but I couldn't find anything to restart the state, even restarting gdm didn't help, so I had to reboot. Later when my latop was on the dock, I've set it to suspend, then unplugged it. When wakingup without external monitor, I had black screen with only the mouse pointer, impossible to get to gdm or anything, had to reboot too. This is on ubuntu natty, those usecase were working just fine before installing gnome3 ppa, so I don't think we can blame kernel or intel GPU driver.
(In reply to comment #0) > This is on ubuntu natty, those usecase were working just fine before installing > gnome3 ppa, so I don't think we can blame kernel or intel GPU driver. I can *assure* you that there is no code in gnome shell to draw each pixel of a monitor in a different color. We definitely can and should blame the kernel or mesa portions of the Intel GPU driver.
You're right it could be driver actually, since I was using metacity with no effect before, and now gnome-shell uses OpenGL afaik.
Probably related to this: https://bugzilla.redhat.com/show_bug.cgi?id=689678 Obviously not Fedora specific, probably something in the kernel.
Unless I'm mistaken, there is nothing that can be done on gnome-shell's side here, so closing.