I have a Dell 3750 Vostro laptop running Ubuntu 14.04 LTS with an NVIDIA GT 525M graphics card. I recently purchased an external monitor, which has both HDMI and VGA input. The VGA input works perfectly, however the HDMI says "No Signal Detected". I would love to use the HDMI connection to this monitor - but I have had no success whatsoever getting it to work.
I have installed Bumblebee, and I have also run sudo apt-get install nvidia-current
. Neither of these had any effect on the HDMI output. Is there anything else I can try? Here is the output from xrandr
:
Screen 0: minimum 320 x 200, current 1600 x 900, maximum 32767 x 32767
LVDS1 connected primary 1600x900+0+0 (normal left inverted right x axis y axis) 382mm x 214mm
1600x900 60.3*+
1440x900 59.9
1360x768 59.8 60.0
1152x864 60.0
1024x768 60.0
800x600 60.3 56.2
640x480 59.9
VGA1 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
I notice that there is no HDMI entry - is this perhaps part of the problem? Thanks for any help! :)