Take the 2-minute tour ×
Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems.. It's 100% free, no registration required.

I want to work in dual screen mode with the monitors not mirroring, but extending each other and I want the total resolution to be 3360x1050. When I try to apply dual screen (that is uncheck "Same image in all monitors" option) it says "required virtual size 3360x1050 does not fit available size 1680x1680".

Additionally, When I try to detect my monitors both are pink monitors, that is the monitors seem to not be detected as separate monitors

So the question seems to be two-fold: How do I detect the monitors as separate monitors? and How do I increase the available size?

share|improve this question
    
Video card? Driver? Logs? –  Ignacio Vazquez-Abrams Sep 8 '11 at 7:19
add comment

1 Answer

up vote 0 down vote accepted

Some dual head setups require declaring the maximum display size in the Xorg configuration file, /etc/X11/xorg.conf. Create this file by running Xorg -configure as root (or Xorg :1 -configure if you already have a GUI running). Copy the generated configuration to /etc/X11/xorg.conf, then make the desired modifications.

In the Screen section, you need to declare a display with a total size of at least 3360 by 1050. The Screen section might look like this:

Section "Screen"
        Identifier      "Configured Screen"
        Device          "Configured Device"
        DefaultDepth    24
        SubSection "Display"
                Depth           8
                Virtual         3360 1050
        EndSubSection
        SubSection "Display"
                Depth           24
                Virtual         3360 1050
        EndSubSection
EndSection
share|improve this answer
    
thx, it solved it perfectly. –  Rythmic Sep 9 '11 at 8:27
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.