dual head with intel driver

Simon Zilliken simon.zn at online.de
Sat Jul 14 11:27:32 PDT 2007

Am Samstag 14 Juli 2007 18:41:15 schrieb Simon Zilliken:
> Hi,
> I'm trying to set up an external display for my laptop with an intel gma965
> chipset, but with no success so far. It's probably an issue with the
> resolutions. Looking at Xorg.0.log I found the following:
> (II) intel(0): Output LVDS connected
> (II) intel(0): Output TMDS-1 connected
> (II) intel(0): Output LVDS using initial mode 1440x900
> (II) intel(0): Output TMDS-1 using initial mode 1280x1024
> The resolution for LVDS seems ok, but it's not used. I get a desktop that's
> larger than the display. The resolution for TMDS-1 should be 1680x1050.
> (II) intel(0): Output configuration:
> (II) intel(0):   Pipe A is on
> (II) intel(0):   Display plane A is now enabled and connected to pipe A.
> (II) intel(0):   Pipe B is on
> (II) intel(0):   Display plane B is now enabled and connected to pipe B.
> (II) intel(0):   Output LVDS is connected to pipe B
> (II) intel(0):   Output TMDS-1 is connected to pipe A
> According to this I added 'Option "MonitorLayout" "DFP,LFP"' to the device
> section in my xorg.conf, but ...
> (II) intel(0): RandR 1.2 enabled, ignore the following RandR disabled
> message. (WW) intel(0): Option "MonitorLayout" is not used
> (WW) intel(0): Option "DevicePresence" is not used
> (--) RandR disabled
> Does anybody have an idea what's going wrong here?
> Thanks,
> Simon


there are some news. I've managed to get the external TFT to work with
xrandr --output TMDS-1 --mode "1680x1050",
but the laptop display shows a clone of it. That's nonsense because of the 
different resolutions, but how do I turn cloning off in order to have two 

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