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Linux connection projector ubuntu failure or abnormal display how to do, many novices are not very clear about this, in order to help you solve this problem, the following editor will explain in detail for you, people with this need can come to learn, I hope you can gain something.

Linux is connected to the projector, but there are few convenient materials on the Internet, especially picture and text materials. Recently, there is a demand in this area, checked a lot of information, and finally realized the projection.

Directly plugged in the VGA, found that the screen display is incorrect, or does not display. This is due to the resolution of the projector. Let's solve this problem.

First check the resolution of the computer and the resolution of the projector.

On the command line, enter: xrandr

Here is a brief interpretation of the output.

Screen 0: minimum 320 x 200, current 2390 x 768, maximum 8192 x 8192 LVDS-1 connected primary 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 194mm 1366x768 60.06, + 1360x768 59.80 59.96 1024x768 60.04 60.00. .

Screen 0: is the laptop resolution, and the current resolution is 1366 x 768.

And look down there.

VGA-1 connected 1024x768+1366+0 (normal left inverted right x axis y axis) 0mm x 0mm 1024x768 60.00* 800x600 60.32 56.25 848x480 60.00. .

VGA-1: yes, we connect to the projector interface and display as connected. The VGA shows that the connection is successful and the computer can recognize the projector. You can also see that the resolution supported by the projector * * is 1024x768.

When setting up, note that the number followed by VGA- may be different, just change it to the current one.

Resolve:

1. Turn on the external monitor and display the same content as the notebook LCD screen (clone)

Enter the command:

Xrandr-output VGA-1-same-as LVDS-1-mode 1024x768

2. Modify the resolution of the notebook to fit the projector.

Enter the command:

Xrandr-s 1024x768

The-s option indicates that the set resolution 1024x768 is the resolution size of the projector

Note: the normal display is only when the resolution of the computer and the projector are the same.

The xrandr command line can easily switch between two screens. The common ways are as follows, and others can be explored by yourself:

Xrandr-output VGA-same-as LVDS-auto

Turn on the external monitor (* resolution) and display the same content as the notebook LCD screen (clone)

Xrandr-output VGA-same-as LVDS-mode 1024x768

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

Xrandr-output VGA-right-of LVDS-auto

Turn on the external monitor (* resolution) and set it to the right expansion screen

Xrandr-output VGA-off

Turn off the external monitor

Xrandr-output VGA-auto-output LVDS-off

Turn on the external monitor and turn off the notebook LCD screen (work with the external monitor only)

Xrandr-output VGA-off-output LVDS-auto

Turn off the external monitor and turn on the notebook LCD screen (laptop LCD screen only)

Resolution to accommodate the projector.

Enter the command:

Xrandr-Resolution to accommodate the projector.

Enter the command:

Xrandr-is it helpful for you to read the above content? If you want to know more about the relevant knowledge or read more related articles, please follow the industry information channel, thank you for your support.

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