I am new to ubuntu and I am facing this behavior and don't know what to do. I would appreciate any help.
I am trying to connect external monitor via VGA(I tried even via HDMI,but no use) but not able to connect external monitor in my laptop. I don`t see any option in system settings or any where. I guess my laptop is not detecting external monitor.
When I give xrandar while external monitor is connected, I am getting following error
xrandr: Failed to get size of gamma for output default Screen 0: minimum 1366 x 768, current 1368 x 768, maximum 1368 x 768 default connected 1368x768+0+0 0mm x 0mm 1366x768 0.0 1368x768 0.0*
I am stuck in this issue.
I am using Ubuntu 12.04 and KDE plasma desktop and my laptop model is DELL latitude E5530.
Can somebody create some diagnoses and give some possible solution, please?