Comment 113 for bug 419328

This bug appears to be fixed after updating to 2.6.31-20-generic #58-Ubuntu yesterday, about 4 hours use so far and no lockups yet.

lspci:
00:00.0 Host bridge: Intel Corporation 82830 830 Chipset Host Bridge (rev 04)
00:02.0 VGA compatible controller: Intel Corporation 82830 CGC [Chipset Graphics Controller] (rev 04)
00:02.1 Display controller: Intel Corporation 82830 CGC [Chipset Graphics Controller]
00:1d.0 USB Controller: Intel Corporation 82801CA/CAM USB Controller #1 (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 42)
00:1f.0 ISA bridge: Intel Corporation 82801CAM ISA Bridge (LPC) (rev 02)
00:1f.1 IDE interface: Intel Corporation 82801CAM IDE U100 Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801CA/CAM SMBus Controller (rev 02)
00:1f.5 Multimedia audio controller: Intel Corporation 82801CA/CAM AC'97 Audio Controller (rev 02)
01:00.0 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev 80)
01:00.1 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev 80)
01:01.0 Communication controller: Conexant Systems, Inc. HCF 56k Data/Fax/Voice/Spkp Modem (rev 08)
01:04.0 Ethernet controller: Intel Corporation 82557/8/9/0/1 Ethernet Pro 100 (rev 08)

xorg-server 2:1.6.4-2ubuntu4.2 (buildd@)

Can send any other info if needed but will be unavailable for a few days.
cheers