Comment 31 for bug 747205

On Tue, Apr 12, 2011 at 12:23:40PM -0000, Jane Silber wrote:
> I'm not sure if I understand your question, but I think the answer is "no". Specifically, I don't notice a difference in behaviour that is dependent on when the monitor is plugged in. I get the same black screen result if I
> (a) plug the monitor in before logging in (i.e., it goes black after I press enter to actually log in), or
> (b) if I am already logged in and plug the monitor in (i.e., it goes black).
>
> In both cases, unplugging the monitor doesn't return to normal
> operations - I need to reboot/relogin. Let me know if there are any
> other logs or debugging steps you'd like me to take.

It might be worth trying this:

- reproduce the problem
- disconnect the VGA
- login on a text console via ctrl+alt+f1
- run "xrandr -display :0.0 > xrandr.txt"
- run "sleep 10;xrandr -display :0.0 --auto --verbose >> xrandr.txt 2>&1"
- within 10 seconds, switch back to X with ctrl+alt+f7
- wait 10 seconds

and see if that has any effect (what it *should* do is turn the built-in
screen back on).

Regardless, it would be useful to get the resulting xrandr.txt file and see
what it says.

--
 - mdz