It turns out that the black screen that I first saw, was actually the
screensaver (which by default is a black screen). When I change the
screensaver this is what comes up on the screen after resume from
suspend. When I press a key the screen goes black and shows the mouse
cursor in a glimpse before the screensaver is back.
Killing the gnome-screensaver process makes the problem go away, and
subsequent suspends and resumes work.
This indicates that the bug may be in gnome-power-manager or something
similar and not in xserver-xorg-video-intel as I first thought.
** Also affects: gnome-power-manager (Ubuntu)
Importance: Undecided
Status: New
** Summary changed:
- [i965, Jaunty] Black screen after resume from suspend
+ [i965, Jaunty] Black screen (or screensaver) after resume from suspend
** Description changed:
Binary package hint: xserver-xorg-video-intel
I have tried the Jaunty alpha-2 LiveCD on a Thinkpad X61 Tablet (965GM
graphics chipset).
Short descripton: After resume from suspend, the screen is black. The
mouse cursor is briefly visible when I move it or when I press a key,
but not otherwise. Ctrl-Alt-F2 successfully changes to a virtual
terminal when I remove the boot options splash and quiet.
Steps to reproduce:
1. Boot from Ubuntu Jaunty alpha-2 LiveCD
2. Remove the boot options "splash" and "quiet" (to be able to use VTs
afterwards)
3. Choose System -> Shut Down -> Suspend (hot key suspend has other bugs
reports associated, bug 306310, bug 307977, bug 307986)
4. Wait for a minute or two
5. Press the power button to resume from suspend
Expected behaviour:
After a few seconds the desktop would be visible.
Actual behaviour:
- The splash screen briefly flashes and the the screen remains black. Moving
the mouse cursor makes it briefly visible, and the same does pressing a key on
the keyboard. Ctrl-Alt-BackSpace does not kill the X-server. Ctrl-Alt-F2
changes to a virtual terminal. If the boot options are left unchanged, the VTs
will only show the splash screen with some green corruption on top (slightly
different for each VT). The VTs apparently remain otherwise functional as it
is possible to reboot by writing `sudo reboot` blindly.
+ A VT (or the splash screen if enabled) briefly flashes and the the screen
remains black. Moving the mouse cursor makes it briefly visible, and the same
does pressing a key on the keyboard. Ctrl-Alt-BackSpace does not kill the
X-server. Ctrl-Alt-F2 changes to a virtual terminal. If the boot options are
left unchanged, the VTs will only show the splash screen with some green
corruption on top (slightly different for each VT). The VTs apparently remain
otherwise functional as it is possible to reboot by writing `sudo reboot`
blindly.
+ [Update]: The black screen is actually the screen saver. See comment 2 below.
PS: The X61 Tablet does not have and optical drive built in, but I have one
in the docking station.
- PPS: I get the same behaviour is I turn off Desktop effects.
+ PPS: I get the same behaviour if I turn off Desktop effects.
--
[i965, Jaunty] Black screen (or screensaver) after resume from suspend
https://bugs.launchpad.net/bugs/311362
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