It turns out that the original bugreporter had solved his problem (Nov 22/13):
http://askubuntu.com/questions/379052/latest-update-breaks-nvidia-prime > It turns out the fix for this is actually pretty simple: Delete the /etc/X11/xorg.conf file, and use nvidia-xconfig to regenerate it. This fixed the problem upon restart -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-prime in Ubuntu. https://bugs.launchpad.net/bugs/1252442 Title: nvidia-prime breaks on reboot after latest updates Status in “nvidia-prime” package in Ubuntu: Incomplete Bug description: Currently I'm using a Dell Latitude E6430. I recently updated to to Ubuntu 13.10 (from 13.04). I installed the nvidia-319-updates/nvidia-settings-319-updates/nvidia- prime drivers (also tried the plain nvidia-319/nvidia-settings-319 drivers), disabled optimus, and was able to use multiple monitors with the dell dock (after creating some xrandr scripts). However, after the latest round of updates (I applied them on 11/14) everything got weird. Now, whenever I boot the 80% of the screen is stuck on the blue FDE (full disk encryption) password screen, the other 20% will load an incredibly skewed login screen (compressed to a height of ~100-200 pixels, and the width of the screen). You can move the mouse and see that the screen is updating, it's just not legible at all. In order to fix it, I have to do the following: * Shutdown * Startup (going to the BIOS) * Enable Optimus * Reboot * Boot up, enter FDE password * Wait until boot finishes (fails?), as I'm stuck on a blank screen * Shutdown * Startup (going to the BIOS) * Disable Optimus * Reboot * Starts up normally I have to do this every time I restart the computer. Needless to say, it's rather annoying. I've tried: re-re-installing lightdm, the nvidia drivers, etc... n.b. I have the latest firmware/BIOS updates from Dell. n.b. #2 I always start the laptop in an undocked state To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1252442/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

