Bug#583774: gnome-panel doesn't show up at login

[Alexandre Fournier]

Le Thu, 03 Jun 2010 09:52:31 +0200,
Josselin Mouette <joss at debian.org> a écrit :

> Le dimanche 30 mai 2010 à 16:58 +0200, Alexandre Fournier a écrit :
> > For a couple of weeks,  gnome-panels have frequently not been
> > visible when I log in gnome. The only way I have found to make them
> > appear is to open a terminal and pkill gnome-panel. This happens
> > quite regularly but not systematically.
> 
> This can be caused by a problematic compositing manager. Which window
> manager are you using, and if it’s metacity, is compositing enabled?
> 
> I’d also need to know which video driver you are using.
> 
> Cheers,

Hello Josselin, I am using metacity. To my knowledge, compositing is not
enabled. How can I check that?

my video driver is provided by the package
xserver-xorg-video-intel (currently v. 2:2.9.1-4), I guess it's i915?

lspci for the graphic card:
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS,
943/940GML Express Integrated Graphics Controller (rev 03) (prog-if 00
[VGA controller]) Subsystem: Intel Corporation Device 7270 Flags: bus
master, fast devsel, latency 0, IRQ 16 Memory at 50380000 (32-bit,
non-prefetchable) [size=512K] I/O ports at 20e0 [size=8]
	Memory at 40000000 (32-bit, prefetchable) [size=256M]
	Memory at 50400000 (32-bit, non-prefetchable) [size=256K]
	Expansion ROM at <unassigned> [disabled]
	Capabilities: <access denied>
	Kernel driver in use: i915