radeon, screen option

Timothy S. Nelson wayland at wayland.id.au
Thu Oct 8 16:41:43 PDT 2009

On Fri, 9 Oct 2009, Csillag Kristof wrote:

> Dear all,
> Now that my individual monitors are operational, I would like to create
> the following setup:
>    Monitor 1            Monitor 2            Monitor 3
>    (Connected to      (Connected to      (Connected to
>    FireMV 2200)      RS690M)             FireMV2200)
> If I don't do anything special, the two monitors connected to the same
> card wind up as one big desktop, and I can put the third monitor RightOf
> or LeftOf them. But I want to put it between them!
> How do I do this?

 	I have a FireMV 2400, but am only using 2 outputs.  I'm hoping that 
Fedora 12 will make using all 4 outputs possible.  Anyway, here's a script 
that gets run when I start my computer:


# Yes, we set the same things multiple times, but strangely, removing
# stuff will make this break.
xrandr --output DVI-0 --mode 1024x768 --crtc 1
xrandr --output DVI-1 --auto --left-of DVI-0 --mode 800x600 --crtc 0
xrandr --output DVI-0 --mode 1280x1024
xrandr --output DVI-0 --mode 1024x768 --crtc 1
xrandr --output DVI-1 --auto --left-of DVI-0 --mode 800x600 --crtc 0


 	My script above does the following:
1.	Try to set things the way I want (fails for some reason)
2.	Completely change the screen mode of DVI-0
3.	Try to set things up the way I want (works this time)

 	I'm wondering, if you play with xrandr long enough, will you get 
something useful?

 	Say you want monitors 1, 2, and 3 in that order.  I'd be at least 
thinking about ending with a sequence that went something like this:

1.	Put monitor 3 to the left of monitor 1 (or maybe above)
2.	Put monitor 2 to the right of monitor 1 (the right-of slot should be
 	free now that monitor 3 isn't in it)
3.	*Now* put monitor 3 to the right of monitor 2

 	I figure there's a bug in xrandr somewhere since my init script has to 
run some bits twice, but I've worked around it.  Maybe you can too.

 	HTH :)

| Name: Tim Nelson                 | Because the Creator is,        |
| E-mail: wayland at wayland.id.au    | I am                           |

Version 3.12
GCS d+++ s+: a- C++$ U+++$ P+++$ L+++ E- W+ N+ w--- V- 
PE(+) Y+>++ PGP->+++ R(+) !tv b++ DI++++ D G+ e++>++++ h! y-

More information about the xorg mailing list