But for the moment I don't have problem with this hardware, and no jitter as you
had with XFree 4.0.x.
Thanks for your answers, it's important to notice the problem you encountered with
this graphic card.
Do you know if there are problems with specific processors using RTAI ? or if one
works better than other with RTAI ?
Regards.
Damien
Erwin Rol a écrit :
> Damien Roullier wrote:
> >
> > I use a p166 mmx with an S3 virge DX... and XFree 3.3.5. But my questions are
> > especially for future applications to know which hardware components are the
> > best to use with RTAI.
>
> Interesting i didn't see to much problems with 3.3.x altough with 4.0.x
> my
> s3 virge DX is useless. I think it is probably safe to say the s3 virge
> DX should
> be way on top of the "do not use for hardrealtime" list.
>
> - Erwin
>
> >
> > Damien
> >
> > Erwin Rol a écrit :
> >
> > > Damien Roullier wrote:
> > > >
> > > > Hi,
> > > >
> > > > I think there are problems with some graphic cards and some X server may
> > > > involve delays in LXRT mode in RTAI, is it right ? and which cards and X
> > > > server don't have these problems ?
> > > Not only in LXRT mode, and not only with RTAI (also with RT-Linux). My
> > > S3 card
> > > totally kills any realtime behavior there is, with jitter upto 50 msec
> > > (0.05 sec). I looked
> > > into it a while back and noticed this didn't happen with XFree 3.3.X and
> > > it goes
> > > away when turning off acceleration (although X gets unusable slow when
> > > doing that :-/).
> > > The low latency ppl also warm against using the linux framebuffer
> > > drivers, although they
> > > don't have hardrealtime so this warning might not be of importance for
> > > RTAI.
> > >
> > > I am interested in hearing what hardware you use and what X server.
> > >
> > > >
> > > > I also would like to know which processors are the best for RTAI, and
> > > > thus if there are problems with some of them.
> > > >
> > > > Thanks for your answers.
> > > > Regards.
> > > >
> > > > Damien
> > > > --
> > > >
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