Dual screen on ATI 9600 | NV350 AQ using radeon driver - clone only ?

[GordonYuan at viatech.com.cn]

Dear Torbjørn,
    Maybe you can change the xorg.conf like this:
		Section "Monitor"
			Identifier	"VGA-0"
			Option		"PreferredMode"		"800x600"
		EndSection
	
		Section "Monitor"
			Identifier	"DVI-0"
			Option		"PreferredMode"		"800x600"
			Option		"RightOf"				"VGA-0"
		EndSection

	If you don't want to specify the mode, the virtual size may be too small. You can change the virtual size like this, but you can't exceed the limitation of hardware.
		Section "Screen"
			DefaultDepth 24
			SubSection	"Display"
				Depth	24
				Virtual  2560 2560    
			EndSubSection
		EndSection
	Please have a try, thanks!
Best wishes,
Gordon

-----Original Message-----
From: xorg-bounces at lists.freedesktop.org [mailto:xorg-bounces at lists.freedesktop.org] On Behalf Of Torbj?rn Thorsen - Nextline
Sent: 2009年3月16日 20:50
To: xorg at freedesktop.org
Subject: Dual screen on ATI 9600 | NV350 AQ using radeon driver - clone only ?

I have to identical monitors running at 1280x1024.

torbjorn at torbjorn-desktop:~$ xrandr | grep connected
VGA-0 connected 1280x1024+0+0 (normal left inverted right x axis y axis)
338mm x 270mm
DVI-0 connected 1280x1024+0+0 (normal left inverted right x axis y axis)
338mm x 270mm
S-video disconnected (normal left inverted right x axis y axis)

The first problem was the Virtual size was too small to fit two of both
outputs, so that got configured in xorg.conf.

Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 2560 x 1024

So now I should be ready for running dual screen ?

torbjorn at torbjorn-desktop:~$ xrandr --dryrun --output DVI-0 --right-of VGA-0
screen 0: 2560x1024 675x270 mm  96.33dpi
crtc 0:    1280x1024   60.0 +1280+0 "DVI-0" "VGA-0"

The result of doing this is that both outputs end up with the same
offset, in effect, I can only see the right side of the virtual screen.

torbjorn at torbjorn-desktop:~$ xrandr | grep connected
VGA-0 connected 1280x1024+1280+0 (normal left inverted right x axis y
axis) 338mm x 270mm
DVI-0 connected 1280x1024+1280+0 (normal left inverted right x axis y
axis) 338mm x 270mm

I have tried lots of different ways to get them to show the whole
virtual screen, including using --pos, but I can't get them to split.
The outputs always see the same area of the virtual screen.

If anybody could point me in the right direction, I would be very grateful.

-- Torbjørn
_______________________________________________
xorg mailing list
xorg at lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/xorg