I am able to reproduce a similar bug on gutsy:

1. System->Quit->Switch User
2. I relogin as myself
3. System->Quit->Switch User
Then black screen and I can't do anything more.

If I log on this computer from another one through ssh. I can see that gdm is 
stuck waiting for the new X process.
I straced the whole process and X freezes soon after ioctl on /dev/nvidia0 and 
/dev/nvidiactl, I can't even kill it.

I switched from proprietary nvidia driver to the opensource nv driver
and the bug disappeared so I think this bug is driver-related.

I was unable to reproduce it on another computer using the X savage
driver.

-- 
switching to current logged in user freezes gdm
https://bugs.launchpad.net/bugs/78470
You received this bug notification because you are a member of Ubuntu
Bugs, which is the bug contact for Ubuntu.

-- 
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

Reply via email to