ATI Dual Head (Spanning)

[savage]

Hi, I'm asking on behalf of a friend who is currently wrestling with Fedora 10, fresh from Windows, he's signing up now.

I've never used an ATI card with Fedora, so this is virgin territory for me, he's got 2 monitors, a 19" with a max res of 1280x1024 and a 15" at 1024x768.

The card he has is a Radeon X1300/X1550 series (as identified in Windows). Between us we've searched all over for how to get dual head working properly with spanned desktop.

I'm pretty sure his xorg.conf is pretty borked by now, but it is working on both monitors, using separate X sessions on each.

His xorg.conf, as created by the aticonfig command is below. Anyone got any ideas/good links on how to get this going?

Thanks Savage

Edit: I have no idea what those non-display chars are in the device section, aticonfig put them there (I don't trust it, it clearly has alterior motives).

His xorg.conf:

# Xorg configuration created by livna-config-display

Section "ServerLayout"
	Identifier     "aticonfig Layout"
	Screen      0  "aticonfig-Screen[0]-0" 0 0
	Screen         "aticonfig-Screen[0]-1" RightOf "aticonfig-Screen[0]-0"
EndSection

Section "Files"
EndSection

Section "ServerFlags"
	Option	    "AIGLX" "on"
EndSection

Section "Monitor"
	Identifier   "aticonfig-Monitor[0]-0"
	Option	    "VendorName" "ATI Proprietary Driver"
	Option	    "ModelName" "Generic Autodetecting Monitor"
	Option	    "DPMS" "true"
EndSection

Section "Monitor"
	Identifier   "aticonfig-Monitor[0]-1"
	Option	    "VendorName" "ATI Proprietary Driver"
	Option	    "ModelName" "Generic Autodetecting Monitor"
	Option	    "DPMS" "true"
EndSection

Section "Device"
	Identifier  "aticonfig-Device[0]-0"
	Driver      "fglrx"
	Option	    "@•	�…	è”	" "DDX"
	Option	    "" "DDX"
	Option	    "DesktopSetup" "horizontal"
	Option	    "OverlayOnCRTC2" "1"
	BusID       "PCI:3:0:0"
EndSection

Section "Device"
	Identifier  "aticonfig-Device[0]-1"
	Driver      "fglrx"
	BusID       "PCI:3:0:0"
	Screen      1
EndSection

Section "Screen"
	Identifier "aticonfig-Screen[0]-0"
	Device     "aticonfig-Device[0]-0"
	Monitor    "aticonfig-Monitor[0]-0"
	DefaultDepth     24
	SubSection "Display"
		Viewport   0 0
		Depth     24
		Modes    "1280x1024"
	EndSubSection
EndSection

Section "Screen"
	Identifier "aticonfig-Screen[0]-1"
	Device     "aticonfig-Device[0]-1"
	Monitor    "aticonfig-Monitor[0]-1"
	DefaultDepth     24
	SubSection "Display"
		Viewport   0 0
		Depth     24
		Modes    "1600x1200" "1280x1024" "1024x768"
	EndSubSection
EndSection

Section "Extensions"
	Option	    "Composite" "Enable"
EndSection

[Jon_Morehouse]

It worked for me by setting up the fglrx driver, then letting it go to the normal clone mode. After that, you should be able to open up the Screen Resolution under System->Preferences->Hardware->Screen Resolution (mind, this is on F9), and then select the spanning resolution.

I don't know what will happen in your case because the monitors are different sizes and resolutions. It may be necessary to run one monitor at a non-native resolution.

Hope that helps a little.

Edit: you should delete those lines with the non-display characters. And I have never seen "DDX" before... you might get away with deleting that, too.

[savage]

Hi Jon thanks for the reply.

We did have it kind of setup how you suggested, I think by default it set itself up with 2048x768 - so the 19" as you say was using 1024x768 instead of 1280x1024.

We're going to re-install and try from fresh, I think I caused more damage than good trying to get it going

Thanks again for the response.