I'm running Ubuntu 14.04 on a system with an NVIDIA Geforce GTX 950 graphics card. I had no problems until I switched on the iGPU (Intel HD Graphics 4600) in the UEFI settings. I want to use the NVIDIA card for some CUDA computation and the integrated graphics to drive a monitor. I can set this up pretty easily with an AMD card because it doesn't require additional drivers. The NVIDIA driver seems to be interfering with my integrated graphics card and I end up with a login loop if I select my integrated graphics as the POST display.
I checked out
Bumblebee, which doesn't seem related to my use case. I don't want to switch between the two graphics cards. I just want them to function like two separate independent graphics cards, like they would do on Windows.
Some additional information:
extension "GLX" missing on display ":0"after the failed logins.
.Xauthorityfile has the correct permission, and removing it does not resolve the issue.
- NVIDIA driver 352.93 is in use. The driver is actually working, as I can execute my CUDA job and use
nvidia-smifrom the TTYs. It just somehow screws up displays on the Intel graphics.
Any help is greatly appreciated!