I've been having similar sounding freezes since upgrading from Intrepid 8.10 to Jaunty 9.04 (amd64) on a Lenovo X301 (2776) laptop. In the 24 hours since upgrading it has twice locked up the screen display, mouse pointer, and keyboard. /var/log/kern.log shows a kernel 'Oops' related to 'i915_gem_execbuffer' - might be a separate bug or different error for same problem?
uname -a
Linux shim 2.6.28-11-generic #42-Ubuntu SMP Fri Apr 17 01:58:03 UTC 2009 x86_64 GNU/Linux
One of Steve's freezes looks very similar to: /bugs.launchpad .net/bugs/ 365527
https:/
I've been having similar sounding freezes since upgrading from Intrepid 8.10 to Jaunty 9.04 (amd64) on a Lenovo X301 (2776) laptop. In the 24 hours since upgrading it has twice locked up the screen display, mouse pointer, and keyboard. /var/log/kern.log shows a kernel 'Oops' related to 'i915_gem_ execbuffer' - might be a separate bug or different error for same problem?
uname -a
Linux shim 2.6.28-11-generic #42-Ubuntu SMP Fri Apr 17 01:58:03 UTC 2009 x86_64 GNU/Linux
lspci -nn | grep VGA
00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07)
(is this like a 915/945/965? the kern.log mentions 915)
[...] 3a8>] i915_gem_ execbuffer+ 0x1e8/0x740 [i915]
May 3 17:26:03 shim kernel: [ 3517.858785] BUG: unable to handle kernel NULL pointer dereference at 000000000000002c
May 3 17:26:03 shim kernel: [ 3517.858799] IP: [<ffffffffa03ea
May 3 17:26:03 shim kernel: [ 3517.858821] PGD 13a128067 PUD 1379ae067 PMD 0
May 3 17:26:03 shim kernel: [ 3517.858830] Oops: 0000 [#1] SMP
[...]
Full dump on https:/ /bugs.launchpad .net/ubuntu/ +bug/368642