Display colorsync profile remains unapplied?

[Christopher Hunt]

Hi Roland,

Thanks for your reply. I am using the one card with two DVI ports on  
the same card. When I mirror the display I only get one panel. When I  
un-mirror I get two panels - one for each display. The settings of  
this panel I get when mirroring generally apply to both displays e.g.  
if I change the resolution then the setting will be effected on both  
(as you'd expect). However if I change the color sync selection to  
Generic RGB then only the main display shows a change in colour.

Are you mirroring the displays or are you using two cards and one DVI  
port from each or one card and both DVI ports (like me)?

Kind regards,
Christopher

On 28/03/2007, at 10:40 AM, Roland Torres wrote:

>
> On Mar 27, 2007, at 5:14 PM, Christopher Hunt wrote:
>
>> OK, I've rebooted the machine and have now seen the display  
>> myself. To me it looks as though display 2 is using the settings  
>> of the Generic RGB profile where display 1 is using the Sanyo  
>> XP50/55 profile (which is dimmer). Now it could still be to do  
>> with the differences discussed between the projectors etc., but I  
>> just don't "feel" that it is having looked at the screens  
>> physically - the blue just looks too different - richer on display  
>> 2 (the brighter one).
>>
>> I performed a little experiment here and note that if I mirror two  
>> displays (doesn't matter what type of displays these are) and  
>> select Generic RGB, the secondary display does not effect the  
>> setting. I suspect that the secondary display uses the default  
>> setting for the monitor based on what it looks like to me.
>>
>> Does this concur with anyone else's observations? Should you not  
>> expect that the colour profile setting is effected to both displays?
>>
> Hi Christopher, if you're using the same video card, and a separate  
> DVI port for each projector, then I would expect each display to  
> get its own Prefs panel pop up on it, where you can choose the  
> profile for each independently. Isn't this what you're seeing? We  
> have a 2-headed setup here, and that's how it's working for us.