So... I have two monitors on my Ubuntu machine. And every time I launch some Windows OpenGL application under Wine it turns off the second monitor. And leaves it turned off when the application exits. I wonder, is there a shell command which will instantly turn the second monitor on?
xrandr command is the one you are looking for. An example usage is:
xrandr --output HDMI1 --auto --same-as LVDS1
You can have
xrandr on its own to see the different outputs that are available.
1I'll add that to find out names of outputs one can run
xrandr --currentApr 15, 2014 at 15:07
@AleksandrKravets, shouldn't be any different than
xrandron its own in most cases. The man page says that this avoids looking for any hardware changes, so I would avoid this unless I have a specific reason to use it.– GraemeApr 15, 2014 at 15:12
You're right, I just didn't try it that way :) Apr 15, 2014 at 15:19
Use xrandr command without args for view your output names and the supported resolutions.
Once you have this informations, you can setup a screen like this (this is an example, there is a lot of others options):
**xrandr --output <output> --mode <resolution> --right-of/--left-of <output>**
You can also just reactivate your screen with:
**xrandr --output <output> --auto**
1Sorry, there's no such thing as
--onoption. But there's
--auto. Apr 15, 2014 at 14:14
xrandr --output HDMI1 --auto --same-as LVDS1. You can have