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

[giggz]

Alex Deucher a écrit :
> On Mon, Jan 5, 2009 at 3:45 PM, giggz <giggzounet at gmail.com> wrote:
>> 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 ?
> 
> No, it's only supported by xf86-video-ati.  Plus since it's an r3xx
> card, it only supports upscaling.
> 
> Alex

Ok thx again!

Have a nice day
Bye