ati and 2 monitors with 2 different resolutions : is it possible ?

giggz giggzounet at gmail.com
Mon Jan 5 12:45:49 PST 2009


Alex Deucher a écrit :
> On Mon, Jan 5, 2009 at 2:53 PM, giggz <giggzounet at gmail.com> wrote:
>> Alex Deucher a écrit :
>>> On Mon, Jan 5, 2009 at 1:42 PM, giggz <giggzounet at gmail.com> wrote:
>>>> Hi,
>>>>
>>>> Happy new year!
>>>>
>>>> I have a question :
>>>> on my laptop (debian sid), I have a second monitor on the VGA output.
>>>>
>>>> I don't have any problem on the VGA output when the monitor has the same
>>>> display resolution (1400x1050) as the LVDS monitor.
>>>> But when my second monitor has a lower resolution (1024x768), I can have
>>>> a correct "clone" mode : on the second monitor I have a part of the
>>>> "big" one (a rectangle 1024x768).
>>>>
>>>> Is there something to do ?
>>> What exactly are you trying to do?  With clone mode you can have
>>> either dis-similar modes on each head (1400x1050 on one, 1024x768 on
>>> the other) or a common mode on both heads (e.g., 1024x768 on both).
>>>
>>> Alex
>> Hi,
>>
>> I'm trying to have dis-similar modes on each head (1400x1050 on one,
>> 1024x768 on the other) in clone mode...but it doesn't work.
>>
>> I have my main screen (LVDS) in 1400x1050 and my second (VGA) in
>> 1024x768. But on the VGA one, I don't have my complete desktop, just a
>> part of it (a rectangle, which its size is 1024x768 of the complete
>> image (1400x1050)).
> 
> It does work.  1024x768 is smaller than 1400x1050 so you won't be able
> to see all of the larger screen on the smaller one.  As Rafal
> suggested you could down-scale the image on avivo class hw (r5xx and
> newer), but the ati driver doesn't currently support downscaling.
> Pre-avivo chips (r1xx-r4xx) only support upscaling.
> 
> Alex

Ah ok.

Thx for the explanation. And Can I use radeonhd driver for my radeon
9600 mobility ?

Bye
GiGGz



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