Comment 0 for bug 1258231

The machine's (Dell Precision M6500, core i7, nVidia Quadro FX 3800M) interface frequently (once an hour at least) locks up. The mouse almost always functions fine but won't allow to click anything, it does however locks up sometimes as well.
Sound continues to play just fine, as do all other background tasks.

Switching to TTY1 and switching back to TTY7 will mostly recover the issue by relaunching the shell.
Unfortunately it also results in a black screen from time to time, leaving nothing but to relaunch the window manager loosing all opened X applications.

I have this issue since Ubuntu 12.10 and have failed finding any solution for it. Have tried numerous Kernels and nVidia drivers to no avail.

Have been posting a lot in these two bug reports and created this new one as suggested by "penalvch":
https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/1132121
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/986831

Syslog entries:

Dec 5 17:44:03 Europa kernel: [ 8187.092411] NVRM: os_pci_init_handle: invalid context!
Dec 5 17:44:03 Europa kernel: [ 8187.092451] NVRM: os_pci_init_handle: invalid context!
Dec 5 17:44:03 Europa kernel: [ 8187.092454] NVRM: os_pci_init_handle: invalid context!
Dec 5 17:44:03 Europa kernel: [ 8187.092455] NVRM: os_pci_init_handle: invalid context!
Dec 5 17:44:03 Europa kernel: [ 8187.092458] NVRM: os_pci_init_handle: invalid context!
Dec 5 17:44:03 Europa kernel: [ 8187.092462] NVRM: os_pci_init_handle: invalid context!
Dec 5 17:44:03 Europa kernel: [ 8187.092464] NVRM: os_pci_init_handle: invalid context!
Dec 5 17:44:03 Europa kernel: [ 8187.092466] NVRM: os_pci_init_handle: invalid context!
Dec 5 17:44:03 Europa kernel: [ 8187.092467] NVRM: os_pci_init_handle: invalid context!
Dec 5 17:44:03 Europa kernel: [ 8187.092469] NVRM: os_pci_init_handle: invalid context!
Dec 5 17:44:03 Europa kernel: [ 8187.092470] NVRM: os_pci_init_handle: invalid context!
Dec 5 17:44:03 Europa kernel: [ 8187.092472] NVRM: os_pci_init_handle: invalid context!
Dec 5 17:44:03 Europa kernel: [ 8187.092473] NVRM: os_pci_init_handle: invalid context!
Dec 5 17:44:03 Europa kernel: [ 8187.092477] NVRM: Xid (0000:01:00): 8, Channel 00000003
Dec 5 17:44:05 Europa kernel: [ 8189.091441] NVRM: os_schedule: Attempted to yield the CPU while in atomic or interrupt context

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: linux-image-3.11.0-14-generic 3.11.0-14.21
ProcVersionSignature: Ubuntu 3.11.0-14.21-generic 3.11.7
Uname: Linux 3.11.0-14-generic x86_64
NonfreeKernelModules: nvidia wl
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: mvanworkum 2639 F.... pulseaudio
 /dev/snd/controlC0: mvanworkum 2639 F.... pulseaudio
 /dev/snd/pcmC0D0p: mvanworkum 2639 F...m pulseaudio
Date: Thu Dec 5 18:14:26 2013
HibernationDevice: RESUME=UUID=d4c4f4ad-64b5-4110-b360-41660844584e
InstallationDate: Installed on 2012-07-03 (519 days ago)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
MachineType: Dell Inc. Precision M6500
MarkForUpload: True
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcFB:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-14-generic root=UUID=6600ec3d-d9d2-4333-a5ae-5849e7f58e20 ro quiet splash
RelatedPackageVersions:
 linux-restricted-modules-3.11.0-14-generic N/A
 linux-backports-modules-3.11.0-14-generic N/A
 linux-firmware 1.116
SourcePackage: linux
UpgradeStatus: Upgraded to saucy on 2013-09-06 (90 days ago)
dmi.bios.date: 06/04/2013
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A10
dmi.board.name: 0R1203
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA10:bd06/04/2013:svnDellInc.:pnPrecisionM6500:pvr:rvnDellInc.:rn0R1203:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Precision M6500
dmi.sys.vendor: Dell Inc.