I have added module nvidia to /etc/modules to ensure it will be loaded at boot time;
cat /etc/modules # /etc/modules: kernel modules to load at boot time. # # This file contains the names of kernel modules that should be loaded # at boot time, one per line. Lines beginning with "#" are ignored. nvidia and then update initramfs with "update-initramfs -uk all". No problem so far after one week testing! -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-graphics-drivers in Ubuntu. https://bugs.launchpad.net/bugs/1275760 Title: low graphics mode due to possible race condition on precise Status in “nvidia-graphics-drivers” package in Ubuntu: In Progress Bug description: Precise 12.04.4 x86_64, kernel 3.2.0-58-generic. lspci reports: 01:00.0 VGA compatible controller: NVIDIA Corporation GF108GL [Quadro 600] (rev a1) dpkg -l 'nvidia*' | grep '^ii' reports: ii nvidia-304 304.116-0ubuntu0.0.1 ii nvidia-319-updates 331.20-0ubuntu0.0.1 ii nvidia-331-updates 331.20-0ubuntu0.0.1 ii nvidia-common 1:0.2.44.2 ii nvidia-current 304.116-0ubuntu0.0.1 ii nvidia-settings 331.20-0ubuntu0.0.1 ii nvidia-settings-304 331.20-0ubuntu0.0.1 ii nvidia-settings-319-updates 331.20-0ubuntu0.0.1 ii xorg 1:7.6+12ubuntu2 Since installation, this system has periodically fallen to the "running in low graphics mode" prompt on boot. This can always be resolved by logging into a TTY and restarting LightDM: sudo service lightdm restart. Recently (sorry I can't say precisely - probably the last month or so) the frequency of this event has increased to ~90% of boots. Sample Xorg.0.log attached, but the key lines appear to be [ 3.364] (EE) NVIDIA(0): Failed to initialize the NVIDIA kernel module. Please see the [ 3.364] (EE) NVIDIA(0): system's kernel log for additional error messages and [ 3.364] (EE) NVIDIA(0): consult the NVIDIA README for details. [ 3.364] (EE) NVIDIA(0): *** Aborting *** While `dmesg | grep nvidia` shows [ 2.737764] nvidia: module license 'NVIDIA' taints kernel. [ 3.658332] nvidia 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [ 3.658338] nvidia 0000:01:00.0: setting latency timer to 64 From the timestamps, it looks like Xorg attempts to load the nvidia drivers 300ms before the kernel has actually loaded/initialised them, and hence fails. This certainly looks like a race condition. By the time I log into a TTY, lsmod shows the `nvidia` module to be loaded and restarting lightdm succeeds. Is there any way for either Xorg to check and if necessary wait for kernel module loading, or the low graphics dialog at least include a better option for dealing with this situation? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/1275760/+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
