I have experienced this problem on my Ubuntu 12.04.3 LTS system. Here's an extract from dmesg output:
[ 30.521761] NVRM: API mismatch: the client has the version 304.108, but [ 30.521763] NVRM: this kernel module has the version 304.88. Please [ 30.521764] NVRM: make sure that this kernel module and all NVIDIA driver [ 30.521765] NVRM: components have the same version. Here's my attempted fix (thanks for the hints from above). After a reboot, all appears well. hugh@redblack:~$ sudo dkms status nvidia-304, 304.88, 3.2.0-53-generic, x86_64: installed nvidia-304, 304.88, 3.2.0-55-generic, x86_64: installed nvidia-304, 304.88, 3.2.0-56-generic, x86_64: installed nvidia-304, 304.88, 3.2.0-57-generic, x86_64: installed nvidia-304-updates, 304.108, 3.2.0-57-generic, x86_64: installed hugh@redblack:~$ locate /modprobe.conf /lib/nvidia-304/modprobe.conf /lib/nvidia-304-updates/modprobe.conf /usr/share/man/man5/modprobe.conf.5.gz hugh@redblack:~$ sudo dkms remove nvidia-304/304.88 -k 3.2.0-57-generic -------- Uninstall Beginning -------- Module: nvidia-304 Version: 304.88 Kernel: 3.2.0-57-generic (x86_64) ------------------------------------- Status: Before uninstall, this module version was ACTIVE on this kernel. nvidia_304.ko: - Uninstallation - Deleting from: /lib/modules/3.2.0-57-generic/updates/dkms/ - Original module - No original module was found for this module on this kernel. - Use the dkms install command to reinstall any previous module version. depmod......... DKMS: uninstall completed. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-graphics-drivers-304-updates in Ubuntu. https://bugs.launchpad.net/bugs/1262752 Title: nvidia_304 not blacklisted or removed when nvidia_304_updates is installed. Status in “nvidia-graphics-drivers-304-updates” package in Ubuntu: Confirmed Bug description: Dell Latitude E6520 Laptop System had a working nvidia-304 driver package installed (304.88-0ubuntu0.0.3) A regular system update installed, build and activated nvidia-304-updates (304.108-0ubuntu0.0.1) The new driver does not blacklist nvidia-304 which is still available at /lib/modules/3.2.0-57-generic/updates/dkms/nvidia_304.ko Depending on which driver is found first on the filesystem, it is possible that udev loads the wrong driver at system boot. (Driver detection and loading based on pci-aliases found in the system). Xorg.0.log shows: [ 22.112] (EE) NVIDIA(0): Failed to initialize the NVIDIA kernel module. Please see the [ 22.112] (EE) NVIDIA(0): system's kernel log for additional error messages and [ 22.112] (EE) NVIDIA(0): consult the NVIDIA README for details. [ 22.112] (EE) NVIDIA(0): *** Aborting *** [ 22.112] (EE) NVIDIA(0): Failing initialization of X screen 0 Dmesg shows: [ 22.227733] NVRM: API mismatch: the client has the version 304.108, but [ 22.227735] NVRM: this kernel module has the version 304.88. Please [ 22.227735] NVRM: make sure that this kernel module and all NVIDIA driver [ 22.227736] NVRM: components have the same version. [ 22.298983] init: lightdm main process (1406) terminated with status 1 1) Description: Ubuntu 12.04.03 LTS Release: 12.04 2) Installed: 304.108-0ubuntu0.0.1 3) Correct nvidia kernel module to be loaded at system boot 4) Depending on which driver is found first on the filesystem the wrong nvidia kernel module can be loaded. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: nvidia-304-updates 304.108-0ubuntu0.0.1 ProcVersionSignature: Ubuntu 3.2.0-57.87-generic 3.2.52 Uname: Linux 3.2.0-57-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.0.1-0ubuntu17.6 Architecture: amd64 Date: Thu Dec 19 17:27:29 2013 InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120423) MarkForUpload: True ProcEnviron: TERM=linux PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: nvidia-graphics-drivers-304-updates UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-304-updates/+bug/1262752/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
