The PCI bridge can be put into a special mode allowing infinite retries. This means that if the video card is given a command, the PCI bus essentially stops until the video card responds (and some video cards take a long time to do so). Some X servers will allow you to turn this particular feature off while still enabling the other acceleration abilities of the video card but as to which X servers allow it and how to actually disable this 'feature' I have no idea.
This is a problem that crops up quite regularly in real-time systems requiring tight deterministic features (the video card literally blows determinism out of the water) although I have not personally had to deal with it. Troy Davis > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf > Of Scott Long > Sent: Tuesday, September 17, 2002 1:49 PM > To: [EMAIL PROTECTED] > Subject: Re: [Xpert]Noises during playing sounds > > > Actually, I don't think he said that just moving the mouse causes the > problem. It seems like it's happening whenever he scrolls a window or > moves it. > > If the S3 card is PCI, chances are it's stealing PCI bandwidth from > the SBLive! card causing this audio "tearing." If that's the case, > there's really nothing you can do about it (except buy an AGP video > card)! I would suggest turning off "opaque window resize/move" in the > window manager if it's enabled, that should reduce the PCI bandwidth > requirements during a window move/resize. However, scrolling will > probably continue to cause clicks and pops. > > I had precisely this same problem back when I was also using an S3 PCI > card. There's no good solution except to upgrade to AGP if possible. > > Scott Long > SwiftView, Inc. http://www.swiftview.com > > On Tue, 17 Sep 2002 10:57:19 -0700 (PDT) > "J. Imlay" <[EMAIL PROTECTED]> wrote: > >Turn down/ mute your audio in and mic. > > > >You probably have one/both of those maxed and as a result they are > >picking > >up electrical interference from using your mouse or other things and > >amplifying it a _LOT_ and outputing it. The alternative is to turn > >off > >loop back on either/both of these. This would allow you to still use > >the > >mic, but then audio coming in to the mic/aux_in wont also come out > >your > >speakers, it will just go to the application recording them. > > > >I've honestly never seen this on linux but I have seen it on several > >windows computers. And as far as I know this is the only possible way > >for > >your moving the mouse to generate static in your sound card. > > > >As allways, I don't guarantee I'm correct though. > > > >Good luck. > > > >Josie Imlay > ><http://josie.atypedigital.com> > > > > > >On Tue, 17 Sep 2002, Antonio Bibiano wrote: > > > >> When I play some sounds and I move a window or scroll a page I ear > >>some clicking noises, I have a sound blaster live! (with ALSA module > >>snd-card-emu10k1) and a S3 Savage 4 using the X driver "savage" for > >>the XFree86 4.2.0 . > >> > >> There is some reason to my problem??? > >> > >> Can you give me some help?? > >> > >> Thanks > >> > >> Antonio > >> _______________________________________________ > >> Xpert mailing list > >> [EMAIL PROTECTED] > >> http://XFree86.Org/mailman/listinfo/xpert > >> > > > >_______________________________________________ > >Xpert mailing list > >[EMAIL PROTECTED] > >http://XFree86.Org/mailman/listinfo/xpert > _______________________________________________ > Xpert mailing list > [EMAIL PROTECTED] > http://XFree86.Org/mailman/listinfo/xpert > _______________________________________________ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert
