While we're on the subject of non-working bt878 cards, My Intel based system (P4) has no trouble with the bt878 until I stick in two of them. This causes some sort of trouble on the bus as I start to see hicups on the video card and eventually throughput from the bt878 cards and to the video card breaks down (sometimes I even get "ERR" messages in the logs from the bttv driver). All the cards have their own interrupts. Yeah, I've bothered the list about this before but still haven't gotten an answer and the problem is driving me nuts. Neil ----- Original Message ----- From: "Johan Celén" <johan.celen@xxxxxxxxx> To: <video4linux-list@xxxxxxxxxx> Sent: Tuesday, August 19, 2003 10:15 AM Subject: Re: shared interrupts > hmm. this might be a dumb question ;), But anyway.. i've got a Aopen MK33 > (mini-itx with via kt133 chipset) > and a Hauppauge WinTV PCI (bt878). I have managed to get the card to work, > but the picture is quite bad. > I've got several "distorted" lines on my tv, seems almost like it's running > on wrong Hz or something.. > Could this have anything to do with this flaw? > > > ----- Original Message ----- > From: "Neil Radisch" <nradisch@xxxxxxxxxxxxx> > To: <video4linux-list@xxxxxxxxxx> > Sent: Tuesday, August 19, 2003 4:09 PM > Subject: Re: shared interrupts > > > > Seems that 2.4.22 rc2 and later has the via irq patch. > > Might want to give that a try. > > ----- Original Message ----- > > From: "Neil Radisch" <nradisch@xxxxxxxxxxxxx> > > To: <video4linux-list@xxxxxxxxxx> > > Sent: Tuesday, August 19, 2003 10:00 AM > > Subject: Re: shared interrupts > > > > > > > It was still a problem with kernel 2.4.20 > > > > > > ----- Original Message ----- > > > From: "Alan Cox" <alan@xxxxxxxxxx> > > > To: <video4linux-list@xxxxxxxxxx> > > > Sent: Tuesday, August 19, 2003 8:10 AM > > > Subject: Re: shared interrupts > > > > > > > > > > > An internet search reveals that PCI problems are common with alot of > > > > > different > > > > > VIA chipsets, particularly running Linux. > > > > > > > > The older VIA chipsets (KT133 etc) had a flaw with very high PCI load. > > > > People shouldn't be seeing these with newer ones. The only problem > we've > > > > really had with newer VIA was IRQ routing errors and those turned out > to > > > be > > > > our fault (and fixed in the newest kernels). > > > > > > > > Alan > > > > > > > > > > > > -- > > > > video4linux-list mailing list > > > > Unsubscribe > > mailto:video4linux-list-request@xxxxxxxxxx?subject=unsubscribe > > > > https://www.redhat.com/mailman/listinfo/video4linux-list > > > > > > > > > -- > > > video4linux-list mailing list > > > Unsubscribe > mailto:video4linux-list-request@xxxxxxxxxx?subject=unsubscribe > > > https://www.redhat.com/mailman/listinfo/video4linux-list > > > > > > -- > > video4linux-list mailing list > > Unsubscribe mailto:video4linux-list-request@xxxxxxxxxx?subject=unsubscribe > > https://www.redhat.com/mailman/listinfo/video4linux-list > > > > -- > video4linux-list mailing list > Unsubscribe mailto:video4linux-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/video4linux-list