Bug#689381: X: Login screen fails to appear, though you can still interact with it

[Paul Menzel]

Dear Gregory,


Am Mittwoch, den 24.10.2012, 12:42 +1300 schrieb Gregory Plummer:

> >> On most occasions when this bug has arisen I have been able to log in
> >> and everything loads fine.
> >
> > Could you describe what happens? So GDM default background with no
> > window, then you enter your credentials and hit enter. Then what. The
> > background is loaded and fades in and after some time the GNOME panel
> > appears?
> 
> Yes, I get the default background with no visible window to enter my
> credentials. However I am able to press enter and type in my password
> to log in as if the credentials window were still there. After
> entering my password and hitting enter everything appears to load
> normally just as you say.

I see. Thanks. Another thing, do you see the mouse cursor?

When this happens and you log in into GNOME and log out. Does the login
window appear then?

Next time this happens could you please try the following and report
back.

1. Switch to the virtual terminal with Ctrl + Alt + F1.
2. Switch back with Ctrl + Alt + F7.

Did something change?

Then,

1. Switch again to tty1 with Ctrl + Alt + F1.
2. Log in.
3. Enter `sudo service gdm3 restart`
4. Back to tty7 with Ctrl + Alt + F1. Any difference?

> >> Here is the output from xrandr you wanted.
> >
> > […]
> >
> > Thanks! It does not show anything weird. Could you please clarify how
> > you captured this output? After logging in, when everything was fine?
> 
> Yes, the xrandr output I included was captured from a terminal after
> logging in normally. I have just experienced this bug again and have
> included new xrandr output.

[ xrandr output ]

I can see no difference to the output in your message before.

> > Please make sure to always note the current circumstances when capturing
> > something as it is very hard otherwise to comprehend what is going on.
> >
> > Also please attach the output under system information of `reportbug
> > gdm` or `reportbug gdm3`.
> 
> My apologies but I do not know what you are referring to?

First run `aptitude search gdm` and paste the output.


Thanks,

Paul
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