[xmonad] recompiling xmonad.hs results in one virtual screen instad of two

[Daniel Wagner]

http://www.haskell.org/haskellwiki/Xmonad/Frequently_asked_questions#Multi_head_or_xinerama_troubles

On 2013-05-03 06:55, Christopher J. Ruwe wrote:
> I am using xmonad with two screens managed by xrandr with
> 
> xrandr --output HDMI1 --mode 1920x1080 --pos 0x0 --rotate normal \
>        --output LVDS1 --off \
>        --output DP2 --off \
>        --output DP1 --off \
>        --output VGA1 --mode 1920x1080 --pos 1920x0 --rotate normal
> 
> I am using a xmonad setup from last year's december and screens 1 - 9
> are placed on single physical screens.
> 
> A minor readaption of this setup (window size only) resulted in xmonad
> treating the two screens as one virtual screen. Investigating, I
> found out that just recompiling the very same .xmonad.hs resulted in
> the same change.
> 
> I supsect some of imports have changed, which results in this
> behaviour.
> 
> I import
> 
> import XMonad
> import System.Exit
> 
> import qualified XMonad.StackSet as W
> import qualified Data.Map        as M
> 
> import XMonad.Hooks.ManageDocks
> --import XMonad.Hooks.EwmhDesktops
> 
> import XMonad.Layout.Maximize
> import XMonad.Layout.GridVariants as GV
> import XMonad.Layout.MultiColumns
> import XMonad.Layout.PerWorkspace
> 
> Regrettably, I have deleted all last year's binaries three weeks ago,
> so I cannot recursively diff and I have not found similar reports in
> the archives. For now, I copied a xmonad.o from a zfs-snap, but I
> would like to change my config in the future. Can somebody help me?
> 
> Thanks and cheers,
> --
> Christopher
> TZ:         GMT + 2h
> GnuPG/GPG:  0xE8DE2C14
> 
> FreeBSD 9.1-RELEASE #2: Tue Nov 27 03:45:16 UTC 2012
> root at darkstar:/usr/obj/pcbsd-build90/fbsd-source/9.1/sys/GENERIC
> 
> Punctuation matters:
> "Lets eat Grandma or Lets eat, Grandma" - Punctuation saves lives.
> "A panda eats shoots and leaves" or "A panda eats, shoots, and leaves" 
> -
> Punctuation teaches proper biology.
> 
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