Fire GL 9000 with Cinema Display

[Beat Fluri]

Benjamin Herrenschmidt wrote:
> On Thu, 2004-12-23 at 09:10 +0100, Beat Fluri wrote:
> 
>>>I've had lots of reports of this display not working properly with the
>>>modeline obtained from the EDID block, with either X or radeonfb.
>>>
>>>A user managed to get the 23" working with that modeline:
>>>
>>># 1920x1200 @ 60Hz
>>>Modeline "1920x1200" 193.156 1920 2048 2256 2592 1200 1201 1203 1242 
>>>+hsync +vsync
>>>
>>>I don't know about the 20".
>>
>>I have found some Modelines for 20". How can I force that X use a 
>>spezific Modeline. The log tells me that X always uses the Modeline from 
>>EDID. I use "DDCMode" "off" but that does not have any impact. I also 
>>use UseModes "..." in the Monitor section with a corresponding Modes 
>>section, but X does not seem to consult these Modes...
> 
> 
> Well, as I wrote later, the current driver is no good at using the DVI
> output along with the internal LCD on mobility chips. This will be fixed
> sooner or later, but in the meantime, you'll probably need to force it
> not to use the LVDS at all...

So, if I use "MonitorLayout" "TMDS,NONE" I can force my Modelines? Or 
what should I do to force my Modelines?

--beat