Public bug reported: This happens on my laptop when using additional monitor. I think that there also may be xorg-intel-driver involved but I can see no information in syslog nor xorg.log. I'm attaching some screenshots of unity desktop.
ProblemType: KernelOops DistroRelease: Ubuntu 11.04 Package: linux-image-2.6.38-6-generic 2.6.38-6.34 Regression: No Reproducible: Yes ProcVersionSignature: Ubuntu 2.6.38-6.34-generic 2.6.38-rc7 Uname: Linux 2.6.38-6-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23. Annotation: Your system might become unstable now and might need to be restarted. Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: Slmodemd 1378 F.... slmodemd matusikk 5892 F.... pulseaudio /dev/snd/pcmC0D6c: Slmodemd 1378 F.... slmodemd /dev/snd/pcmC0D6p: Slmodemd 1378 F.... slmodemd Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xe8580000 irq 44' Mixer name : 'Analog Devices AD1981' Components : 'HDA:11d41981,103c30aa,00100200 HDA:11c13026,103c30aa,00100700' Controls : 13 Simple ctrls : 11 Date: Thu Mar 17 09:49:27 2011 Failure: oops HibernationDevice: RESUME=UUID=8a029044-6ad2-4766-8699-bbdb4ecec430 InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Alpha amd64 (20100803.1) PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-6-generic root=UUID=ae1b442f-c06a-4626-ab65-d11f01735f1e ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-2.6.38-6-generic N/A linux-backports-modules-2.6.38-6-generic N/A linux-firmware 1.48 SourcePackage: linux Title: BUG: unable to handle kernel NULL pointer dereference at 0000000000000230 UpgradeStatus: Upgraded to natty on 2010-12-07 (100 days ago) dmi.bios.date: 02/21/2008 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 68YDU Ver. F.0E dmi.board.name: 30AA dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 58.13 dmi.chassis.asset.tag: CNU6412FYD dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvr68YDUVer.F.0E:bd02/21/2008:svnHewlett-Packard:pn:pvrF.0E:rvnHewlett-Packard:rn30AA:rvrKBCVersion58.13:cvnHewlett-Packard:ct10:cvr: dmi.product.version: F.0E dmi.sys.vendor: Hewlett-Packard ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-kerneloops intel kernel-graphics kernel-oops natty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/736699 Title: BUG: unable to handle kernel NULL pointer dereference at 0000000000000230 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs