Comment 46 for bug 370292

same thing here.
With Jaunty the system freezes occasionally. It's nerving but not a show stopper .. i hope the downgrade to 2.4 will do the trick here.
But when i boot the Karmic, the x-server freezes after a random amount of seconds. Sometimes the mouse cursor still moves ... sometimes not. I tested the ubuntu-x-swat and the xorg-edgers drivers, but that didn't help. The console on the other hand works like a charm. The only way to get a stable x-server under karmic is by blacklisting the i915 module. This however comes with the disadvantage of having no dri (not so bad, because the 855gme as dast as a snail) and no xv (bad ... very bad). Switching to an external monitor works though.

My system is a ASUS M5200N laptop (Pentium M 1.6ghz with 855gme chipset).

PS: please excuse mistakes ... my english is a bit rusty.