FC6 dual-head malfunctioning (probing wrong monitor)

[Neil Bird]

   My set up which worked under FC5 is now causing problems under FC6;  I 
have a CRT capable of 1600x1200, and to its right an LCD of 1280x1024.

   When I start X now, according to the debug, it's probing and seeing the 
LCD (a Dell) as the main* monitor, not the CRT, and thus forcing the CRT to 
an odd res. limited to the capabilities of the LCD.

   I've tried adding 'Option "IgnoreEDID" "true"' to both Monitor configs., 
but it doesn't help (X reports 'not using IgnoreEDID'!).

   I've had to take to turning off the LCD before starting X, then 
everything works as I want.


   Any thoughts?


* - the card's a Matrox G550, the 'main' monitor as far as I'm concerned is 
the analogue port, and the LCD's in the DVI port but using a DVI-converter 
and using a standard analogue cable.  The card *may* think that the DVI's 
the default one, but when the box boots it's the analogue that works from 
the BIOS on.  Plus, the analogue monitor's on the other side of a Belkin KVM 
switch, so I'm not being kind to X, but I ought to be able to stop it probing.

-- 
[neil at fnx ~]# rm -f .signature
[neil at fnx ~]# ls -l .signature
ls: .signature: No such file or directory
[neil at fnx ~]# exit