I'm having problem with setting dual monitor in Ubuntu 13.10 with my newly acquired Nvidia GTX 780.
The two screens I have are:
//I won't identify the model name since I think its irrelevant
Left screen: ASUS 1920x1200 connected to HDMI on GTX 780
Right Screen: QNIX 2560x1440 connected to Dual link DVI on GTX 780
Both screen works perfectly after fresh Ubuntu installation, without installing any additional driver. Just slow and laggy.
The first thing I've tried is to install the official Nvidia driver from their site. I believe it was version 325. I followed the on screen instruction and successfully installed it. After reboot, ASUS (left) works with login screen but QNIX doesn't. It shows a continuously flashing black, white, R,G,B, grey screen. The setting in Displays shows ASUS identified as "Ancor Communications Inc 25"" while the QNIX is "Unknown Display". Resolution settings is only set to 800x600 on the QNIX.
Then I tried to uninstalled the Nvidia 325 driver and revert back to stock driver, and install the 319 driver from "Settings" -> "Software & Updates" -> "Additional Drivers". But things started to get messed up. Black screen etc. I think it may be caused by me messing up with the
/etc/X11/x.org.config and not doing a
sudo apt-get purge nvidia*
So I reinstalled Ubuntu 13.10 and tried the Additional Driver update with Nvidia 319-update to see if it works. But the same thing happened as the installation of 325 driver. Left screen works and right screen flashing colors.
I have tried to search for a solution but failed to find one that works for me. Is it a problem of the x.org.config file? (I have a feeling it does) Any help plz.
Update 1: xrandr shows the following results. Don't know if it matters.
Screen 0: minimum 8 x 8, current 2720 x 1920, maximum 16384 x 16384 DVI-I-0 disconnected (normal left inverted right x axis y axis) DVI-I-1 disconnected (normal left inverted right x axis y axis) HDMI-0 connected primary 1200x1920+0+0 left (normal left inverted right x axis y axis) 550mm x 340mm 1920x1200 60.0*+ 1920x1080 59.9 50.0 60.0 50.0 1680x1050 60.0 1440x900 59.9 1440x576 50.1 1280x1024 75.0 60.0 1280x960 60.0 1280x720 60.0 59.9 50.0 1152x864 75.0 1024x768 75.0 70.1 60.0 800x600 75.0 72.2 60.3 56.2 720x576 50.0 50.1 720x480 59.9 60.1 640x480 75.0 72.8 59.9 59.9 DP-0 disconnected (normal left inverted right x axis y axis) DVI-D-0 connected 800x600+1920+0 (normal left inverted right x axis y axis) 0mm x 0mm 800x600 60.3*+ DP-1 disconnected (normal left inverted right x axis y axis)