laptop display - Ubuntu black screen
2014-07
user2196536
I have a problem with my HP G72 laptop with Intel HD Graphics integrated GPU while running any Ubuntu-based Linux distro. It always boots with a black screen (if booting without nomodeset option). I realised that the laptop screen works only if I plug in a VGA screen and type following commands in terminal:
xrandr --output LVDS1 --mode 1440x900
xrandr --output LVDS1 --mode 1600x900
But still, it works only if VGA screen is plugged. After that I can unplug the VGA screen and the laptop screen works until next reboot. How can I fix this?
user2196536
The brightness level was set to 0.
Adam Matan
I have been trying to configure dual-screen with my laptop docking station using xrandr.
After some Google and SU searches, I have managed to:
xrandr --output LVDS --pos 1680x0
Which sets my laptop screen (LVDS) to be just at the right size of my desktop screen.
Now, if I like to put it on the left side, I must use this notation:
xrandr --output LVDS --left-of MY_DESKTOP_SCREEN
Of course, there's no MY_DESKTOP_SCREEN device so I get:
xrandr: cannot find output "MY_DESKTOP_SCREEN"
How do I find or configure the names of my video devices?
8088
This site helped, so i typed:
xrandr -q
q stands for query, which gives:
Screen 0: minimum 320 x 200, current 1680 x 1050, maximum 2960 x 1050
VGA connected 1680x1050+0+0 (normal left inverted right x axis y axis) 474mm x 296mm
1680x1050 60.0*+ 59.9
1280x1024 75.0 59.9
1280x960 59.9
1152x864 75.0 74.8
1024x768 75.1 70.1 60.0
832x624 74.6
800x600 72.2 75.0 60.3 56.2
640x480 75.0 72.8 66.7 60.0
720x400 70.1
LVDS connected 1280x800+0+0 (normal left inverted right x axis y axis) 331mm x 207mm
1280x800 60.2*+ 60.0 50.0
1280x768 60.0
1024x768 60.0
800x600 60.3
640x480 59.9
TV disconnected (normal left inverted right x axis y axis)
Now I can:
xrandr --output LVDS --left-of VGA
And:
