Intel N10 graphics controller keeps crashing under Ubuntu 10.04

on

What is the hardware in this machine:
sudo lshw -C display

*-display:0
description: VGA compatible controller
product: N10 Family Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 02
width: 32 bits
clock: 33MHz
capabilities: msi pm bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:30 memory:fe900000-fe97ffff ioport:b400(size=8) memory:d0000000-dfffffff(prefetchable) memory:fe800000-fe8fffff
*-display:1 UNCLAIMED
description: Display controller
product: N10 Family Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2.1
bus info: pci@0000:00:02.1
version: 02
width: 32 bits
clock: 33MHz
capabilities: pm bus_master cap_list
configuration: latency=0
resources: memory:fe780000-fe7fffff

ok so it’s using driver i915.

That’s also in the error message i see:

after the crash:

the dmesg shows i915_do_wait_request returns -5

and Xorg log files something like:

i830_uxa_prepare_access gttĀ  bo map failed