[Ubuntu 14.04 64bit]
According to NVIDIA-settings I am currently using the Intel GPU (is there a way to verify that via command-line?).
> lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) 01:00.0 VGA compatible controller: NVIDIA Corporation GK107GLM [Quadro K2000M] (rev a1) > xrandr Screen 0: minimum 320 x 200, current 2944 x 1080, maximum 32767 x 32767 LVDS1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 345mm x 194mm 1920x1080 59.9*+ [...] 640x480 59.9 VGA1 connected primary 1024x768+1920+312 (normal left inverted right x axis y axis) 0mm x 0mm 1024x768 60.0* 800x600 60.3 56.2 848x480 60.0 640x480 59.9 VIRTUAL1 disconnected (normal left inverted right x axis y axis) DP-1-1 disconnected HDMI-1-1 disconnected
VGA1 is plugged in and works more or less - that means it functions as a second screen just that the resolution is very low (it is 1024x768) and the ratio is not correct (it is 4:3). The ratio is actually the bigger issue because I mostly use my large external display for watching movies. Apparently because the ratio is 4:3 instead of 16:9 in full screen mode large parts of the picture is missing.
In the display settings the monitor is shown as "unknown".
What can I do?
I tried upgrading the driver but apparently it is already up-to-date:
> sudo apt-get install xserver-xorg-video-intel [sudo] password for raffael: Reading package lists... Done Building dependency tree Reading state information... Done xserver-xorg-video-intel is already the newest version.