[xmonad] Xmonad and multiple screens

[Yuriy Halytskyy]

OK, it kind of works with fake Xinerama library inserted via LD_PRELOAD.

 cat ~/.fakexinerama
# 2 screens:
2
# VGA display
0 0 1920 1200
# External LCD screen "HDMI1":
1920 0 1920 1200

 ghc -e "Graphics.X11.openDisplay [] >>=
Graphics.X11.Xinerama.getScreenInfo"
[Rectangle {rect_x = 0, rect_y = 0, rect_width = 1920, rect_height =
1200},Rectangle {rect_x = 1920, rect_y = 0, rect_width = 1920, rect_height
= 1200}


Would be good if this ugly hack was unnecessary.

Cheers,
Yuriy

On Mon, Jun 6, 2016 at 5:14 PM, Yuriy Halytskyy <yuriy.halytskyy at gmail.com>
wrote:

> I am trying to use xmonad on a laptop connected to two monitors, via VGA
> and HDMI outputs. Laptop screen is disabled and both external monitors
> configured using xrandr:
>
> xrandr --output LVDS1 --off
> xrandr --output HDMI-0 --right-of VGA1
> xrandr --output VGA1 --right-of LVDS1
>
>
>
>   But mod+{w,e,r} does not work and the only way to have windows on one of
> my screens is to move floating window. Xinerama shows only right monitor:
> ghc -e "Graphics.X11.openDisplay [] >>=
> Graphics.X11.Xinerama.getScreenInfo"
> [Rectangle {rect_x = 1920, rect_y = 0, rect_width = 1920, rect_height =
> 1200}]
>
> Is it possible to somehow overwrite getScreenInfo for xmonad or configure
> Xinerama propertly?
>
> nvidia-setting can only see one screen and one display.
> xrandr output shows one huge 3840 x 1200 display and all screens:
>
> Screen 0: minimum 8 x 8, current 3840 x 1200, maximum 16384 x 16384
> LVDS-0 disconnected primary (normal left inverted right x axis y axis)
> DP-0 disconnected (normal left inverted right x axis y axis)
> DP-1 disconnected (normal left inverted right x axis y axis)
> HDMI-0 connected 1920x1200+1920+0 (normal left inverted right x axis y
> axis) 518mm x 324mm
>    1920x1200      60.0*+
>    1920x1080      60.0
>    1680x1050      60.0
>    1600x1200      60.0
>    1280x1024      60.0
>    1280x960       60.0
>    1024x768       60.0
>    800x600        60.3
>    640x480        59.9
> DP-2 disconnected (normal left inverted right x axis y axis)
> DP-3 disconnected (normal left inverted right x axis y axis)
> LVDS1 connected
>    1600x900       60.0 +   40.0
>    1440x900       59.9
>    1360x768       59.8     60.0
>    1152x864       60.0
>    1024x768       60.0
>    800x600        60.3     56.2
>    640x480        59.9
> VGA1 connected 1920x1200+0+0 518mm x 324mm
>    1920x1200      60.0*+
>    1920x1080      60.0
>    1680x1050      60.0
>    1600x900       60.0
>    1280x1024      60.0
>    1440x900       59.9
>    1280x800       59.8
>    1280x720       60.0
>    1024x768       60.0
>    800x600        60.3     56.2
>    640x480        60.0
> VIRTUAL1 disconnected
>   1024x768 (0x2ce)   65.0MHz
>         h: width  1024 start 1048 end 1184 total 1344 skew    0 clock
> 48.4KHz
>         v: height  768 start  771 end  777 total  806           clock
> 60.0Hz
>   800x600 (0x2cf)   40.0MHz
>         h: width   800 start  840 end  968 total 1056 skew    0 clock
> 37.9KHz
>         v: height  600 start  601 end  605 total  628           clock
> 60.3Hz
>   640x480 (0x2d0)   25.2MHz
>         h: width   640 start  656 end  752 total  800 skew    0 clock
> 31.5KHz
>         v: height  480 start  490 end  492 total  525           clock
> 59.9Hz
>   1920x1200 (0x2c8)  154.0MHz
>         h: width  1920 start 1968 end 2000 total 2080 skew    0 clock
> 74.0KHz
>         v: height 1200 start 1203 end 1209 total 1235           clock
> 60.0Hz
>   1680x1050 (0x2ca)  146.2MHz
>         h: width  1680 start 1784 end 1960 total 2240 skew    0 clock
> 65.3KHz
>         v: height 1050 start 1053 end 1059 total 1089           clock
> 60.0Hz
>   1280x1024 (0x2cc)  108.0MHz
>         h: width  1280 start 1328 end 1440 total 1688 skew    0 clock
> 64.0KHz
>         v: height 1024 start 1025 end 1028 total 1066           clock
> 60.0Hz
>
>
> Cheers,
> Yuriy
>
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