Xrandroid command to solve the Ubuntu projector Problem

The xrandroid command line allows you to easily switch between two screens. The commonly used method is as follows: the Ubuntu command xrandroid -- outputVGA -- same-asLVDS -- auto to open the external display (maximum resolution ), ubuntu command xrandroid -- outputVGA -- same-asLVDS -- mode1024x768 & nb

The xrandroid command line can easily switch between two screens. The common method is as follows:

Ubuntu commands
Xrandroid -- output VGA -- same-as LVDS -- auto

Turn on the external monitor (maximum resolution), the same content as the notebook LCD screen (clone)

Ubuntu commands
Xrandroid -- output VGA -- same-as LVDS -- mode 1024x768

Turn on the external monitor (resolution: 1024x768) and display the same content as the LCD screen of the notebook (clone)

Ubuntu commands
Xrandroid -- output VGA -- right-of LVDS -- auto

Turn on the external monitor (maximum resolution) and set it to extend the screen on the right

Ubuntu commands
Xrandroid -- output VGA -- off

Turn off external display

Ubuntu commands
Xrandroid -- output VGA -- auto -- output LVDS -- off

Turn on the external monitor and turn off the notebook LCD screen (only use the External Monitor)

Ubuntu commands
Xrandroid -- output VGA -- off -- output LVDS -- auto

Turn off the external monitor and turn on the notebook LCD screen (only use the notebook LCD screen)
(Please be careful in the last two cases. Do not accidentally turn off both screens ....)

In addition to commands, the "Screen Resolution" software provided by GNOME has powerful functions (system> preferences> screen resolution ), the second monitor can be turned on and off by adjusting its resolution. By canceling "clone", you can set it to an extended screen. You can also drag the icon to adjust the relative positions of the two screens.