Comment 3 for bug 712103

I have almost the same problem, but for me it don't help to switch to console and back to x.
After i have written the password i can see the mousepointer changing when i move it across the screen, depending on what is suppose to be showing (link in firefox, text input, etc), but the screen stays all black except the mouse pointer. This started a couple of days ago, and happens about half the times the screensaver comes on. I have to reboot when this happens.
My system is natty a2 i386 thinkpad x200t, last updated 20.02.2011.