Bug#508971: gdm: fails when a user has logged out and as other are still connected

[Denis Laxalde]

Josselin Mouette a écrit :
> Le mardi 16 décembre 2008 à 21:47 -0500, Denis Laxalde a écrit :
>> Package: gdm
>> Version: 2.20.7-4
>> Severity: important
>>
>> When several users are connected in gnome (through the multi-user
>> functionality) and when one of them logs out a repeated system bip
>> occurs.
>> Then, when an other user tries to log out or switch to another user,
>> gdm crashes with a black screen !
>> The only way I found to recover is to kill the gdm process.
>> Since, I experienced this in Debian sid and lenny and previously in ubuntu 8.04.1 the bug might be reported upstream.
> 
> This is very likely to be caused by a problem with the X server. What is
> the model of your graphics card and the X driver you are using?
> 
My graphics card:
01:00.0 VGA compatible controller: nVidia Corporation G72M [Quadro NVS
110M/GeForce Go 7300] (rev a1)
I'm currently using the nv X driver (1:2.1.10-1) but the problem also
appears with the nvidia non-free driver (173.14.09-5).
However, trying to restart the X server with CTRL+ALT+Backspace has no
effect.
Also, I recently noticed that the problem only appears when the user 
that had first logged-in disconnects. After that, the other user can log 
in through the gdm screen but then, another password window (the one 
which appears when the screen is locked) appears along with a system bip.


Thanks,

Denis