Arch Linux

Mike_Sander

Member

From: Bochum [GER]

Registered: 2014-10-28

Posts: 1

Dual Head Setup [VGA 1440x900, HDMI 1600x1200]

Hi,

first of all, I have to say that this is my very first time to real use arch. I'm here to get to know arch and to learn as much as I can, so I want to create a real desktop with 2 physical screens.

The first one is connected via VGA, its best resolution is 1440x900.
The second one is connected via HDMI, its best resolution is 1600x1200

I use i3 and got the HDMI screen working, with 1600x1200. native, in using xorg with the

xf86-video-ati driver.

The right screen, my HDMI (the larger one), shows the correct resolution. The left one shows me out of range.

I pacmaned xrandr to try to get some hints:

xrandr: Failed to get size of gamma for output default
Screen 0: minimum 640 x 400, current 1600 x 1200, maximum 1600 x 1200
default connected 1600x1200+0+0 0mm x 0mm
   1600x1200      0.00* 
   1280x1024      0.00  
   1024x768       0.00  
   800x600        0.00  
   640x480        0.00  
   720x400        0.00

First I thought of creating an own xorg.conf in /etc/X11/xorg.conf and later I got in my mind to use xrandr --mode to set the correct resolution.

Which one of these ideas is the correct one? Do you got a better suggestion for me? What do I have to do to reach my correct resolutions. It seems to me that the screen is handled as beeing one. Cause when I change xrandr default resolution, both screens change its resolution.

Hope the best for your help :-D

cheers

elken

Member

From: Emacs

Registered: 2013-10-17

Posts: 67

Re: Dual Head Setup [VGA 1440x900, HDMI 1600x1200]

There is no "correct" one. If it works, it's correct. xrandr is the probably the easier of the two, so stick with that if it works.

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