I'm using ubuntu 14.04 , desktop manager is lightdm, kernel is 3.13, after I installed the nvidia driver( I tried 331, 340, 343, all have this issue) from 'addtional driver' application and reboot, the screen freeze after login. If I switch the gpu from nvidia to intel at 'nvidia x server settings' before I reboot the PC, it's OK to login and everything is fine.
Any one has same issue? How can I fix this problem?
I tried install compiz-config-settings-manager and enable the unity plugin, but still doesn't fix the problem.
After install the nvidia driver, if I use Intel GPU, everything is fine, but as soon as I switch to Nvidia GPU and reboot it shows black screen, if I try logout/login the screen freeze.
If I type:
lspci | grep -i vga it shows:
00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller (rev 06)
lspci | grep -i NV
01:00.0 3D controller: NVIDIA Corporation GK208M [GeForce GT 740M] (rev a1)
and I found out there is no /etx/X11/xorg.conf file exist so I run
nvidia-xconfig to create one and select nvidia GPU then reboot, but still no luck, then I run
prime-select intel switch to intel GPU and startup, the /etx/X11/xorg.conf missing again
$ sudo prime-switch nvidia rmmod: ERROR: Module nvidia is not currently loaded
I have report this bug on launchpad.net: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-331/+bug/1362848 if this bug also effects you ,please go there and click "This bug effects me" on top of the page.