[SOLVED] Dual monitor configuration

gdstew · 2022-03-07 08:17:41

I have a HP Ryzen 7 laptop with HDMI output and I would like to use the second monitor as an extension of the laptop screen giving me a 3840 x 1080 display. The second monitor is detected but simply displays the same thing as the laptop monitor. Is there any setup configuration or any other way to make this work?

Andre4freedom · 2022-03-07 08:28:24

Hello,
you say nothing about your configuration: which desktop environment do you use?
There should be a "Display" configuration applet in you DE. open it, let it detect all displays and set each one up. Make sure to remove the option that mirrors display 1 and 2. It should be that...
Good luck.

gdstew · 2022-03-07 14:32:38

You are right. I have upgraded to Chimeara using Xfce. As stated the second display is detected and I have attempted to set it up but there does not appear to be an option to do what I want to do. I have tried a couple of options with no success.

Last edited by gdstew (2022-03-07 15:15:14)

ralph.ronnquist · 2022-03-07 21:30:26

The program is xrandr, on the command line.

First just

$ xrandr

so you can see what your monitor outlets are called.

Second some configuration adjustment, e.g. like:

$ xrandr --output $mon2 --auto --right-of $mon1

which would enable $mon2 in its default resolution and logically place it top aligned to the right of $mon1.

Use man xrandr for information.

gdstew · 2022-03-07 23:04:34

Thanks for the reply. I seem to be on the right track but a problem has cropped up. Here is the output from xrandr and the command you suggested:

:~$ xrandr
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
eDP connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
1920x1080 59.98*+ 39.98
1680x1050 59.98
1280x1024 59.98
1440x900 59.98
1280x800 59.98
1280x720 59.98
1024x768 59.98
800x600 59.98
640x480 59.98
HDMI-A-0 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 458mm x 258mm
1920x1080 60.00*+
1680x1050 59.88
1600x900 60.00
1280x1024 60.02
1440x900 59.90
1280x800 59.91
1280x720 60.00
1024x768 60.00
800x600 60.32
640x480 59.94
720x400 70.08

:~$ xrandr --output HDMI-A-0 --auto --right-of "Screen 0:"
xrandr: cannot find output "Screen 0:"
:~$ xrandr --output HDMI-A-0 --auto --right-of Screen 0:
xrandr: unrecognized option '0:'
Try 'xrandr --help' for more information.
:~$ xrandr --output HDMI-A-0 --auto --right-of Screen
xrandr: cannot find output "Screen"
:~$ xrandr --output HDMI-A-0 --auto --right-of "Screen 0"
xrandr: cannot find output "Screen 0"

Any ideas?

ralph.ronnquist · 2022-03-08 02:30:06

The monitor outlets are eDP and HDMI-A-0

gdstew · 2022-03-08 05:04:29

Thanks once again, How did I miss that? OK, now it's this (sometimes It just doesn't want to work!):

:~# xrandr --output HDMI-A-0 --auto --right-of eDP
Can't open display

I tried rebooting and then running the command and it did the same thing.

Last edited by gdstew (2022-03-08 05:05:23)

ralph.ronnquist · 2022-03-08 05:49:27

Well, it operates on the current display, as known in the DISPLAY variable or given as command parameter, and it's typically run as the logged in user (not root) in a terminal window. I.e., open your terminal window and type the command there.

gdstew · 2022-03-08 12:05:14

Success!, THANK YOU!

Last edited by gdstew (2022-03-08 12:06:00)

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#1 2022-03-07 08:17:41

[SOLVED] Dual monitor configuration

#2 2022-03-07 08:28:24

Re: [SOLVED] Dual monitor configuration

#3 2022-03-07 14:32:38

Re: [SOLVED] Dual monitor configuration

#4 2022-03-07 21:30:26

Re: [SOLVED] Dual monitor configuration

#5 2022-03-07 23:04:34

Re: [SOLVED] Dual monitor configuration

#6 2022-03-08 02:30:06

Re: [SOLVED] Dual monitor configuration

#7 2022-03-08 05:04:29

Re: [SOLVED] Dual monitor configuration

#8 2022-03-08 05:49:27

Re: [SOLVED] Dual monitor configuration

#9 2022-03-08 12:05:14

Re: [SOLVED] Dual monitor configuration

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