I've been experiencing this issue too, ever since 11.10, and still on 12.04. I've tried the nvidia drivers every few months but they still aren't working yet. I've even tried using the 304.51 drivers from the ppa:ubuntu-x-swat/x-updates repository, but still no luck.
The default ubuntu driver (vesa, I think, possibly nouveau) works okay, but I can't enable multiple monitors on it, and I can't change the display resolution to the native resolution or aspect ratio (display is natively 1920x1200; only options are available are 1280x1024, 1024x768, or 800x600). Using the nvidia drivers causes a segfault every single time that X tries to start. Sometimes it manages to get just as far as the 'ubuntu' logo, but most times it doesn't. It displays a message along the lines of "udevd[xxx] inotify_add_watch failed: No such file or directory" a few times, and then does nothing further; I don't know if this is related. I've included the output that I get which corresponds to the already- mentioned output: >From /var/log/Xorg.0.log: [ 17.923] (II) NVIDIA(GPU-1): NVIDIA GPU GeForce Go 7950 GTX (G71) at PCI:3:0:0 (GPU-1) [ 17.923] (--) NVIDIA(GPU-1): Memory: 524288 kBytes [ 17.923] (--) NVIDIA(GPU-1): VideoBIOS: 05.71.22.45.17 [ 17.923] (II) NVIDIA(GPU-1): Detected PCI Express Link width: 16X [ 17.923] (--) NVIDIA(GPU-1): Interlaced video modes are supported on this GPU [ 17.923] (--) NVIDIA(GPU-1): Valid display device(s) on GeForce Go 7950 GTX at PCI:3:0:0 [ 17.923] (--) NVIDIA(GPU-1): none [ 17.972] (II) NVIDIA(0): Setting mode "DFP-0:nvidia-auto-select" [ 18.491] Backtrace: [ 18.500] 0: /usr/bin/X (xorg_backtrace+0x26) [0x7f8584167876] [ 18.500] 1: /usr/bin/X (0x7f8583fdf000+0x18c71a) [0x7f858416b71a] [ 18.500] 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f8583305000+0xfcb0) [0x7f8583314cb0] [ 18.500] 3: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so (0x7f857cec7000+0x4df1f3) [0x7f857d3a61f3] [ 18.500] 4: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so (0x7f857cec7000+0xde2f5) [0x7f857cfa52f5] [ 18.500] 5: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so (0x7f857cec7000+0xde9e0) [0x7f857cfa59e0] [ 18.500] 6: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so (0x7f857cec7000+0x8facb) [0x7f857cf56acb] [ 18.500] 7: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so (0x7f857cec7000+0x11102b) [0x7f857cfd802b] [ 18.500] 8: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so (0x7f857cec7000+0xc8b7e) [0x7f857cf8fb7e] [ 18.500] 9: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so (0x7f857cec7000+0xcd2b2) [0x7f857cf942b2] [ 18.500] 10: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so (0x7f857cec7000+0x4ae478) [0x7f857d375478] [ 18.500] 11: /usr/bin/X (AddScreen+0x171) [0x7f858402dbe1] [ 18.500] 12: /usr/bin/X (InitOutput+0x294) [0x7f858406d9b4] [ 18.500] 13: /usr/bin/X (0x7f8583fdf000+0x3d5ed) [0x7f858401c5ed] [ 18.500] 14: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xed) [0x7f858219876d] [ 18.500] 15: /usr/bin/X (0x7f8583fdf000+0x3daad) [0x7f858401caad] [ 18.500] Segmentation fault at address 0x238 [ 18.500] Caught signal 11 (Segmentation fault). Server aborting [ 18.500] Please consult the The X.Org Foundation support at http://wiki.x.org for help. [ 18.500] Please also check the log file at "/var/log/Xorg.0.log" for additional information. [ 18.500] [ 18.503] ddxSigGiveUp: Closing log [ 18.503] Server terminated with error (1). Closing log file. >From that long string of console commands: *-display description: 3D controller product: G71 [GeForce Go 7950 GTX] vendor: NVIDIA Corporation physical id: 0 bus info: pci@0000:03:00.0 version: a1 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: driver=nvidia latency=0 resources: irq:16 memory:d2000000-d2ffffff memory:b0000000-bfffffff memory:d1000000-d1ffffff ioport:2000(size=128) *-display description: VGA compatible controller product: G71 [GeForce Go 7950 GTX] vendor: NVIDIA Corporation physical id: 0 bus info: pci@0000:04:00.0 version: a1 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress vga_controller bus_master cap_list rom configuration: driver=nvidia latency=0 resources: irq:17 memory:d4000000-d4ffffff memory:c0000000-cfffffff memory:d3000000-d3ffffff ioport:3000(size=128) Distributor ID: Ubuntu Description: Ubuntu 12.04.1 LTS Release: 12.04 Codename: precise Linux james-D900C 3.2.0-32-generic #51-Ubuntu SMP Wed Sep 26 21:33:09 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux ii nvidia-current 304.51-0ubuntu1~precise~xup1 NVIDIA binary Xorg driver, kernel module and VDPAU library ii nvidia-settings 304.51-0ubuntu1~precise~xup1 Tool of configuring the NVIDIA graphics driver If there's anything else that you think would be helpful, then let me know and I'll try and get it. I'm hoping this can be resolved; it's been nearly a year since I've been able to use my display properly on ubuntu. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers in Ubuntu. https://bugs.launchpad.net/bugs/999431 Title: [G72] nvidia binary driver (295.40 and 295.49) segmentation fault To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/999431/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp