[ltp] External monitor

[linux-thinkpad@linux-thinkpad.org]

Hi all,

I have a T42 with Debian unstable installed. A while ago I successfully configured my thinkpad to use an external monitor/beamer.  I haven't used it for a while and after some debian unstable upgrades (My guess is the step from xorg 7.0 to 7.1) this feature is broken. 

If I boot the thinkpad with external display attached it works fine. But I cannot get the display working once X is running and I attach the external display. Fn-F7 doesn't do the trick. However I noticed that the monitor receives some kind of signal but does not display anything. 

Xorg.conf snippet:  

Section "Device"
	Identifier	"ATI Technologies, Inc. Radeon Mobility M7 LW [Radeon Mobility 7500]"
	Driver		"ati"
	BusID		"PCI:1:0:0"
	VideoRam	32000
	Option		"UseFBDev"		"false"
	Option      "SWcursor" "true"
        Option      "DRIReinit" "true"
        Option      "AGPMode" "4"
        Option      "BIOSHotkeys" "true" 
EndSection

Section "Monitor"
	Identifier	"Generic Monitor"
	Option		"DPMS"
	HorizSync	30-65
	VertRefresh	50-75
EndSection

I played along with the xorg.conf file so I might have broken it. Can someone help me ?

Thanks 

Marcel
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