I am currently running Ubuntu Gnome 15.04. I just installed the proprietary nvidia driver version 346 to resolve issues with another application and restarted my desktop to find that my main monitor is unrecognised and classed as an unknown display. The resolution is stuck at 800x600 in a 4:3 aspect ratio.
My graphics card is a Nvidia GTX 760. Drivers: Propietary version 345 Monitor: LG 24" 1920x1080 HDMI
Output of xrandr
Screen 0: minimum 8 x 8, current 2720 x 1080, maximum 16384 x 16384
DVI-I-0 disconnected (normal left inverted right x axis y axis)
DVI-I-1 connected 1920x1080+800+0 (normal left inverted right x axis y axis) 521mm x 293mm
1920x1080 60.0*+
1680x1050 60.0
1440x900 59.9
1280x1024 75.0 60.0
1280x960 60.0
1280x800 59.8
1280x720 60.0
1152x864 75.0
1024x768 75.0 70.1 60.0
800x600 75.0 72.2 60.3 56.2
640x480 75.0 59.9
HDMI-0 connected primary 800x600+0+212 (normal left inverted right x axis y axis) 0mm x 0mm
800x600 60.3*+
DP-0 disconnected (normal left inverted right x axis y axis)
DVI-D-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
1920x1080_60.00 (0x2cc) 173.0MHz
h: width 1920 start 2048 end 2248 total 2576 skew 0 clock 67.2KHz
v: height 1080 start 1083 end 1088 total 1120 clock 60.0Hz
Sorry for the formatting, It was fine outside of the preview. The main emphasis there is the
HDMI-0 connected primary 800x600+0+212 (normal left inverted right x axis y axis) 0mm x 0mm 800x600
I'd appreciate any suggestions.