Unable to Edit Display Settings in 15.04

Question

I just installed 15.04 on a new machine, and when I click on the gear icon in the top right, click System Settings, and click Displays, nothing happens. The window closes/crashes. How can I fix this?

I try it in the terminal, with unity-control-center display, but get this error:

ERROR:gsd-rr-config.c:661:gsd_rr_config_load_current: assertion failed: (gsd_rr_config_match (config, config))

Perhaps it is a driver issue with my graphics card? I've never seen this error before.

Answer 1

I fixed it. I had to run these commands in the terminal:

sudo add-apt-repository ppa:xorg-edgers/ppa
sudo apt-get update
sudo apt-get install nvidia-346

Then restart:

sudo shutdown -r now

Now I have display settings and it detected my second monitor.