Re: [Qemu-devel] qvm86, kqemu and video speed

[emuls]

Hello,

DGA as a option will be OK, in BOCHS you can choose what you use
for Video background driver.

I use a DGA and VMware a lot. I use on all my computers ATI cards
for long time without not problems.

DGA problem on ATI is not related only to ATI drivers, but also
to card producers and MB AGP drivers. ATI as Nvidia give chips to
third side producers and they overtune chips.

You are also forget then VMware use its special driver inside
GUEST OS, for many of us is important to use some sort of native
GUEST OS driver. Othervise we cant use as a Guest OS systems like
Solaris and so on.

Rudolf 

  

----- PŮVODNÍ ZPRÁVA -----
Od: "Oliver Gerlich" <address@hidden>
Komu: "Thomas Steffen"
<address@hidden>,address@hidden Předmět:
Re: [Qemu-devel] qvm86, kqemu and video speed
Datum: 18.4.2005 - 9:43:15

> Thomas Steffen schrieb:
> > On 4/13/05, Hetz Ben Hamo <address@hidden> wrote:
> > 
> > 
> >>Anyone thought about using XFree's Xv extension? last
> >>time I heard, it
> >>works with all the cards, supported well under XFree,
> >>and I think it
> >>will be better working rather with DGA..
> > 
> > 
> > Xv has its denefits, but I am not sure that it is the
> > right tool for
> > the job here. Xv does hardware colorspace expansion,
> > from the color
> > compression usually done in JPEG/MPEG to the RGB.
> > This is the main
> > reason that it works better for video, but obviously
> > we don't need
> > this (unless we want to play videos inside of QEMU).
> > 
> > And most graphics cards support only one Xv area,
> > which is treated as
> > an overlay. That would be a serious restriction,
> > because you could not
> > use Xine and QEMU together on one screen.
> > 
> > So I would think that DGA is the way to go first.
> >
> > Thomas
> >
> 
> Please no DGA :)
> 
> This is one of the reasons why I don't use VMWare - it
> needs DGA for
> fullscreen mode, and my %&§&% ATI 9200 with this
> &§$/$%&/% fglrx driver
> doesn't like DGA (yes, ok, ATI does make progress: at
> least dga doesn't
> now crash the whole system with the current drivers...)
> 
> So I hope that qemu won't use DGA for faster graphics -
> I think
> optimizing the current driver and maybe adding some
> host-OpenGL support
> would be quite an improvement. Besides, such changes
> would also improve
> Qemu on MacOS or Windows, not only on Linux.
> 
> Oliver
> 
> > 
> > _______________________________________________
> > Qemu-devel mailing list
> > address@hidden
> > http://lists.nongnu.org/mailman/listinfo/qemu-devel
> > 
> > 
> 
> 
> 
> 
> _______________________________________________
> Qemu-devel mailing list
> address@hidden
> http://lists.nongnu.org/mailman/listinfo/qemu-devel
> 


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