[expert] TV Tuner kills system

Thu, 06 Nov 2003 21:34:10 -0800

Hi all. I've got a bt878 tuner (ATI TV wonder VE, also have an old STB TV PCI bt848 with the same issues), soundblaster live 5.1, and 3com cyclone ethernet card (eth0) on an Asus nforce2 board (A7N8X) with a Geforce2mx. On board sound is disabled in the bios, on board ethernet is running as eth1. If the tv tuner is not in use (i.e. I haven't started xawtv or motv) everything's fine. A few seconds after I start up motv/xawtv either the tv tuner, sound card or ethernet will stop working. The tuner's image will freeze, the sound card will start playing static or the ethernet just won't connect (I'm on broadband). I'm running mandrake 9.1 with a kernel 2.4.21-0.25 with these parameters:


hdc=ide-scsi hdd=ide-scsi noapic acpi=off pci=noacpi

Not sure if the pci=noapic does anything worthwhile, but my system is completely useless without the acpi=off line.

Moving the card around seems to change which device goes dead, but no matter where I put it one card will go dead. I've managed to get it to the point where there are no IRQ conflicts but that didn't help. Right now the tv card is sharing an irq with usb-ohci. My /proc/interrupts:

CPU0 0: 58151 XT-PIC timer
1: 3942 XT-PIC keyboard
2: 0 XT-PIC cascade
5: 26 XT-PIC usb-ohci, bttv
8: 1 XT-PIC rtc
10: 12102 XT-PIC ehci-hcd, eth1
11: 37089 XT-PIC eth0, EMU10K1
12: 49692 XT-PIC usb-ohci, nvidia
14: 22889 XT-PIC ide0
15: 149 XT-PIC ide1
NMI: 0
LOC: 58118
ERR: 20
MIS: 0



Reloading the driver doesn't help, only rebooting. I have no idea what the cause/solution might be. Can someone with more hardware experience give me some insight? Does anyone have this working on a simular set up? Thanks again :).

Jeremy Gregorio



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