I am having this problem lately with very up-to-date edgy. I have a dual-head display with a Matrox G400 on screen 0 and an ATI 3D Rage IIC on screen 1. I am not using Xinerama.
If I have the gnome-screensaver running and the gnome-power-manager set to put the display to sleep, once they have done their thing (i.e. i come back after a period of idleness) I cannot revive the X server. It stays blank/black. No amount of restarting screen savers (gnome and xscreensaver), playing with xset and the screensaver there and dpms seems to be able to revive it. I have found that if I stop using the gnome-screensaver, use xset to disable the X server screen saver and dpms and set gnome-power-manager to never put the display to sleep, things remain fine. Perhaps this is only a screen-saver issue and nothing to do with power management or vice versa. I have not tried all of the combinations yet, as I do have to get something productive done and having to reset my X session every time I return interferes with that. :-/ If I could find some way to revive the X server I'd be more apt to play with different settings to see what causes it. -- Must reboot after timeout. Screen blacks out with no recovery available. https://launchpad.net/bugs/27052 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
