Comment 198 for bug 355155

Same thing is happening to me ever since I upgraded my notebook to jaunty.

Interestingly it doesn't happen on my desktop where I'm still running a 2.6.27-14 kernel because I can't get the nvidia drivers running on a newer kernel by dkms, but that's a different story...

Symptoms on my notebook (kernel 2.6.28-11 / intel video card):
System freezes about three to four times a day. Keyboard isn't responding anymore. Neither switching to consoles possible, nor killing X by CTRL-ALT-BACKSPACE, nor SYSREQ-EISUB ...

Mouse pointer can still be moved(!) so picture is not entirely frozen, but clicking shows no effect.

Login by ssh is still working, but killing X, or restarting kdm doesn't change anything on the screen.

When I shut down the system, the frozen screen stays on till the machine actually reboots. So there is no shutdown message, or the typical progress bar when shutting down.

For me it seems like an problem with the graphics driver, because I still can use ssh and work on the machine.

I would love to see this bug resolved very fast because it's bothering me quite much.
If you need further information, it would be a pleasure to provide it to you. Since I can still ssh on the machine when the local screen is frozen, I can also send the output of some commands right when it's happening. If this could help ...