[Savage40] Report: Savage IX/MV and Duoview

[Alex Deucher]

--- Silvio Böhler <sboehler at bluewin.ch> wrote:

> Hi,
> 
> I finally tried out the new Savage DuoView support in X.org today. I 
> checked out CVS HEAD and built it on my Thinkpad T22 with Debian 
> Unstable, more or less following the instructions here (1) in order
> not 
> to destroy my existing Debian xfree86 installation.
> 
> First of all, thank you Alex for your great work! It is nice to know 
> that even now that the hardware has probably been out of production
> for 
> quite some time there are people who care about completing the Open 
> Source drivers.
> 
> I am writing this now on my second screen, Xinerama works pretty well
> 
> for me. My graphics card has 8MB of video RAM, so theoretically I
> should 
> be able to use both screens at 1024x768x24bpp. However, if I select 
> 24bpp I get some strange drawing artefacts, so I'm running X at a
> depth 
> of 16bpp now. Similar artefacts appear if I am running the external
> at 
> 1280x1024x16bpp. I will post some screenshots as soon as possible, my
> 
> web hoster is down.
> 
> In view of the latest X.org eye candy, in particular the Composite 
> extensions and transparity, can I realistically expect that some day
> my 
> hardware (Savage IX-MV, 8MB, Thinkpad T22 900Mhz) will be able to
> hande 
> this in an acceptable speed? Last time I tried everything worked but
> it 
> was just painfully slow. AFAIK this has nothing to do with DRI, but 
> rather with accelerating the Render extension. Does anybody know
> whether 
> something like this is planned for the Savage driver?

I suppose one could write render accel for the savages, but the problem
is XAA, the current acceleration system, is not well suited to
accelerating render operations.  A system like KAA from Keith's
experimental X server would be better.  I think long run though, the
plan is to run somehting like Xgl where the entire X server is just an
OpenGL client would be the way to go.  Since savage has 3d acceleration
now, it should, with some work, eventually be able to take advantage of
the nice new eye candy.

Alex

> 
> Cheers
> Silvio
> 
>
(1)http://blogs.vislab.usyd.edu.au/index.php/Steve/2004/09/09/installing_a_non_intrusive_x
> > 


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