Comment 4 for bug 1048230

Same bug here. The display freezes after ~30s, for around 1mn, unfreezes for 30 more seconds, freezes again.
While the display is frozen, Crtl+Alt+F1 remains active, and in fact the underlying windos are active: if I right-clik and move the cursor down where "Create New Folder" should be, a New Folder will appear when the display unfreeezes. Checking with the console shows that the forlder is immediately created. Thus, only the display is actually frozen, and the other layers are not aware of a crash at the display level.

If I let the computer idle, the display spontaneously gets dark (like when compiz crashes) and re-displayed every 2-3 mn.

Computer : Dell Studio, nvidia card, nvidia-current driver.