I've seen a bit about the display being frozen on intel integrated displays, but I do not see the answer anywhere. Does anyone know how to fix this problem:

Ubuntu 9.10 boots and runs just fine for 10, 20 or even 30 minutes performing variety of tasks. Then, without warning the display is frozen. The mouse can move the pointer just fine, but I cannot interact with the desktop and the machine must be shutdown by holding the power button.

I've observed this while playing a Kpatience game, general surfing of the internet, and view youtube videos. One time it happened when the display powers off after being idle, but this is not consistently the case. I have tried to make the freeze happen, but am unable to do so (so it seems, anyway). What is happening here?


Here are the details of my system:

Dell Dimension 2400 Desktop
Output from lshw:
*-display
description: VGA compatible controller
product: 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 01
width: 32 bits
clock: 33MHz
capabilities: pm bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:16 memory:e8000000-efffffff(prefetchable) memory:feb80000-febffff