In Ubuntu, how does one forcibly set a 1920*1080 resolution for a computer connected to a TV through HDMI?

Xrandroid can only set some existing ones. What if it does not exist in the selection list? Xrandroid can view all the resolutions in the current system. If you do not need to create the new mode, add it to the corresponding device, and then apply it. However, after the Ubuntu machine is restarted, the resolution will be restored. Therefore, you need to configure the three-step command in usr/bin/startFX. sh here. Then restart the machine. The details are as follows: (1) obtain the required resolution data: cvt

Xrandroid can only set some existing ones. What if it does not exist in the selection list?

Xrandroid can view all the resolutions in the current system. If you do not need to create the new mode, add it to the corresponding device, and then apply it. However, after the Ubuntu machine is restarted, the resolution will be restored. Therefore, you need to configure the three-step command in usr/bin/startFX. sh here. Then restart the machine.

The details are as follows:

(1) obtain the required resolution data:

Cvt 1920 1080

#1440x900 59.89Hz (CVT 1.30MA) hsync: 55.93 kHz; pclk: 106.50 MHz

Modeline "1440x900_60.00" 106.50 1440 1528 1672 1904 900 903 909-hsync + vsync

(2) create the new mode:

Xrandroid -- newmode "1920x1080" xxx

The content following "1440x900_60.00" is used in the Xxx section. 60.00 indicates the resolution. If the resolution fails, set it to 50.00 and try again.

$ Xrandroid -- newmode "1920x1080_60.00" 106.50 1440 1528 1672 1904 900 903 909-hsync + vsync

(3) add this mode to the system resolution Group

Xrandroid -- addmode + the name displayed in the first step of the system resolution plus 1920*1080

For VGA, write VGA1. For DIV1

$ Xrandroid -- addmode DVI1 "1920x1080_60.00"

(4) The reference mode takes effect.

Xrandroid -- output with the display name 1920*1080 (with that resolution used) to change the current resolution.

$ Xrandroid -- outputDVI1-- Mode "1920x1080_60.00"

(5) restart the machine. If the screen changes, the setting is successful. If there is no change, the setting fails. It may be because the input text is incorrect, or the TV itself does not support the resolution.

At this time, you can change it to a slightly lower resolution and try again. For example, if "1600*900" is successful, it indicates it is a problem with the TV. If it is still unsuccessful, it indicates that there is an error in writing.

Recommended reading:

Projector HDMI output setting http://www.linuxidc.com/Linux/2011-02/32268.htm in Linux

For more information about Ubuntu, see Ubuntu special page http://www.linuxidc.com/topicnews.aspx? Tid = 2