This sounds like an X configuration issue. You may be able to create or
edit /etc/X11/xorg.conf to have multiple screens. But debugging that is
rather annoying. I had a video setup on a box where the driver was buggy
such that I was stuck in the same situation you are in. I used
layoutScreens[1] to work around the issue. This module allows you to divide
your single large screen into sections that xmonad will treat just like
separate screens. If you choose your actual monitor layout and sizes it
will work just how you want.
[1]
http://xmonad.org/xmonad-docs/xmonad-contrib/XMonad-Layout-LayoutScreens.htm...
It still may be worthwhile to debug your xorg.conf but this workaround is
useful to have in your bag of tricks.
Cheers,
Chris Wills
On Thu, Oct 2, 2014 at 4:50 AM, Mario Pastorelli wrote: Hi xmonaders, I have decided to move my XMonad install inside a sandbox to avoid
problems when packages are updated. I'm able to run XMonad with cabal exec
xmonad and I'm very happy with it. My only problem is that XMonad cannot
use Xinerama for some reason: if I configure two displays then I get a
single display which is the union of the first one with the second one. I
cannot find any way to use displays as independent. What I'm doing wrong?
MATE is able to use Xinerama without problems and X11, XMonad and
XMonad-contrib are built with xinerama: ldd ../../xmonad/.cabal-sandbox/bin/xmonad
...
libXinerama.so.1 => /usr/lib/x86_64-linux-gnu/libXinerama.so.1
(0x00007f86f66e8000)
libX11.so.6 => /usr/lib/x86_64-linux-gnu/libX11.so.6
(0x00007f86f63b2000)
libXrandr.so.2 => /usr/lib/x86_64-linux-gnu/libXrandr.so.2
(0x00007f86f61a8000)
... I have libxinerama: ghc -e Graphics.X11.Xinerama.compiledWithXinerama
True And Xorg starts with Xinerama: grep -i xinerama /var/log/Xorg.0.log
[ 13.627] Initializing built-in extension XINERAMA I don't know what's wrong...how can I understand what's going on? Thanks in advance,
Mario
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