Multiple monitors

[Alex Deucher]

On Tue, Oct 6, 2009 at 5:57 AM, Paul van der Vlis <paul at vandervlis.nl> wrote:
> Alex Deucher schreef:
>> On Mon, Oct 5, 2009 at 11:21 AM, Paul van der Vlis <paul at vandervlis.nl> wrote:
>>> Hello,
>>>
>>> I would like to use multiple monitors. I use Asus M4A78 PRO mainboards
>>> with AMD 780G/SB700 chipset and integrated Radeon HD 3200 Graphics.
>>> This mainboard has a VGA and a DVI port. Can I use that for dual screens
>>> with OSS drivers?
>>
>> Yes.
>
> Does that work with a 2.6.26 kernel?

The display will work, but 2D/Xv acceleration for that chip requires
2.6.31 and 3D acceleration requires 2.6.32.

Also you'll need xf86-video-ati 6.12.x for acceleration and it sounds
like you are using a much older version.

>
>>> When I add a PCIe card with HD 3450 chipset I cannot use the integrated
>>> graphics anymore. In the manual they tell about "surround view". Is this
>>> possible with OSS drivers?
>>
>> In theory it should work with kms using drm-next.
>
> Ah, I hope it works really...
> I don't want to use it for games, but for multi-seat.
>
>> fglrx also supports multiple cards.
>
> I don't want closed-source.
>
>>> I am interested in multi-seat systems too.
>>> Do you know about setups for multi-seat systems with ATI/AMD and OSS
>>> drivers?
>>>
>>> I would like to have hardware accelerated 2D. What version of X/kernel
>>> do I need as a minimum?
>>
>> For 2D acceleration you need 2.6.31.  For 3D and kms you'll need
>> drm-next or 2.6.32.
>
> Thanks for the info.
>
>>> And are there ATI videocards what use really less energy?
>>
>> The hardware is capable of quite a few power saving features, they are
>> just not well implemented yet in the open source driver.  There are
>> some options in the non-KMS ddx to reduce engine clocks and enable
>> clock gating, but it's pretty basic right now.
>
> OK.. (it's not for a laptop).
>
> With regards,
> Paul van der Vlis.
>
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