Steve: thanks for the apport report, what you attached shows you aren't running the 2.6.38-11 kernel where the problem you described is supposed to be fixed in though. I'm just curious, is there a difference in the bios revisions used on the working and not working machines? Specifically there was a vram size fix for the intel IGP in 1.13 and the machine with in the attached report is using 1.09. My working machine is on 1.13
Just for future reference on this bug I'm pasting the info on each model (which appear to be identical..) ThinkPad T420s (4174-AY9) i5-2520M(2.5GHz), 8GB RAM, 160GB Solid State Drive, 14in 1600x900 LCD, 1GB Nvidia N12P-NS2, Intel 802.11agn wireless, WWAN option, Bluetooth, 1Gb Ethernet, UltraNav, Secure Chip, Camera, 6c Li-Ion, Win7 Pro 64 ThinkPad T420s (4174-A11) i5-2520M(2.5GHz) 8GB RAM 160GB Solid State Drive 14in 1600x900 LCD 1GB Nvidia N12P-NS2 Intel 802.11agn wireless WWAN option Bluetooth 1Gb Ethernet UltraNav Secure Chip Camera 6c Li-Ion Win7 Pro 64 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/812638 Title: video problems with Thinkpad T420s integrated intel graphics To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-lts-backport-natty/+bug/812638/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs