How to change GNOME default screen rotation

gnomemonitorsresolutionxorg

How do I change the default screen rotation for my gnome desktop? Is there anyway I can change the monitor settings without logging in?

Two monitors rotated

Best Answer

You can do so by modifying the Xorg.conf by adding the line

Section "Monitor"
     Identifier      "Monitor1"
     Option  "Rotate"        "left"
EndSection

or after login use the xrandr command as:

xrandr --output DVI-2 --rotate left

Replace DVI-2 and left as per your requirement

xrandr solution will be effective till session exist. On reboot, the changes will be lost whereas xorg.conf setting will be reboot-persistant

Runtime Solution

One solution is to drop to a tty console (ctrlaltF2) and run xrandr to change the display settings to clone mode. Run the command once with no options to find the names of the connections. Look for a line that looks like

eDP1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 282mm x 165mm

Here the connection is named eDP1. Set the working monitor to display the same content as the broken one with something like

xrandr --output eDP1 --auto --output VGA --auto --same-as eDP1

Then you can switch back to the graphical mode (ctrlaltF1) and the display should be cloned.

Persistent Solution

You can achieve a persistent solution by creating an xorg.conf file with the clone option set. Write the following lines to file and move it to /etc/X11/xorg.conf.d/20-clone-mode.conf

Section "ServerLayout"
        Option "Clone" "On"
EndSection

I haven't tested it, but if this configuration is complete, the monitors should be cloned the next time you boot.

Disabling screen blanking in GNOME 3

Try disabling DPMS and Screen saver:

xset -dpms
xset s off

Best Answer

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Persistent Solution

Disabling screen blanking in GNOME 3

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