kernel BUG at /build/buildd/linux-2.6.32/drivers/gpu/drm/i915/intel_display.c:1917!

I've just get the dialog "kernel became unstable" right after logging in.

ProblemType: KernelOops
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-19-generic 2.6.32-19.28
Regression: Yes
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1
Uname: Linux 2.6.32-19-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Annotation: Your system might become unstable now and might need to be restarted.
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: bernard 1314 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'I82801DBICH4'/'Intel 82801DB-ICH4 with STAC9750,51 at irq 7'
   Mixer name : 'SigmaTel STAC9750,51'
   Components : 'AC97a:83847650'
   Controls : 36
   Simple ctrls : 23
Date: Mon Apr 5 14:00:04 2010
Failure: oops
Frequency: I don't know.
HibernationDevice: RESUME=UUID=5d5d83d7-6825-46bc-bd1e-9bcc71ddca03
Lsusb:
 Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Dell Inc. Latitude D505
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-19-generic root=UUID=8a865616-609e-4027-89c6-1468a40060c5 ro quiet splash
RelatedPackageVersions: linux-firmware 1.33
RfKill:

SourcePackage: linux
Title: kernel BUG at /build/buildd/linux-2.6.32/drivers/gpu/drm/i915/intel_display.c:1917!
WpaSupplicantLog:

dmi.bios.date: 02/17/2004
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A03
dmi.board.name: 0H2049
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA03:bd02/17/2004:svnDellInc.:pnLatitudeD505:pvr:rvnDellInc.:rn0H2049:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Latitude D505
dmi.sys.vendor: Dell Inc.