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View Full Version : [SOLVED] Nvidia Graphic Card and ATI TV tuner problem working together



Blackie_Chan
January 11th, 2010, 09:21 PM
Hi All,

I recently updated my computer. I got a new Nvidia Graphic Card and using my old ATI TV Wonder pro.

After my upgrade, when I start tvtime I am unable to adjust the volume, it's stuck at 0.

After some investigating, I think the problem is because both the graphic card and the tv card are using the same irq number because of


blackie@ubuntu:~$ cat /proc/interrupts
CPU0 CPU1 CPU2 CPU3 CPU4 CPU5 CPU6 CPU7
0: 133 0 0 0 0 0 0 0 IO-APIC-edge timer
1: 0 0 0 684 0 0 0 0 IO-APIC-edge i8042
4: 0 0 0 7 0 0 0 0 IO-APIC-edge
8: 0 0 0 1 0 0 0 0 IO-APIC-edge rtc0
9: 0 0 0 0 0 0 0 0 IO-APIC-fasteoi acpi
12: 0 0 0 56495 0 0 0 0 IO-APIC-edge i8042
16: 0 0 0 0 0 0 0 809519 IO-APIC-fasteoi ehci_hcd:usb1, cx88[0], nvidia
18: 0 0 0 0 0 0 0 0 IO-APIC-fasteoi ahci
19: 0 206566 0 0 0 0 0 0 IO-APIC-fasteoi pata_jmicron
21: 0 0 63413 0 0 0 0 0 IO-APIC-fasteoi ata_piix, ata_piix
22: 0 0 0 0 0 0 0 136174 IO-APIC-fasteoi HDA Intel
23: 0 69 0 0 0 0 0 0 IO-APIC-fasteoi ehci_hcd:usb2




blackie@ubuntu:~$ dmesg | less
[ 16.150066] cx88/0: cx2388x v4l2 driver version 0.0.7 loaded
[ 16.150095] cx8800 0000:07:01.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[ 16.150326] cx88[0]: subsystem: 1002:00f8, board: ATI TV Wonder Pro [card=4,autodetected], frontend(s): 0
[ 16.150328] cx88[0]: TV tuner type 44, Radio tuner type -1
...
[ 16.352494] nvidia 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[ 16.352500] nvidia 0000:01:00.0: setting latency timer to 64
[ 16.352567] NVRM: loading NVIDIA UNIX x86 Kernel Module 190.53 Tue Dec 8 18:51:41 PST 2009
[ 16.360585] tuner-simple 0-0060: creating new instance
[ 16.360587] tuner-simple 0-0060: type set to 44 (Philips 4 in 1 (ATI TV Wonder Pro/Conexant))
[ 16.363011] cx88[0]/0: found at 0000:07:01.0, rev: 3, irq: 16, latency: 64, mmio: 0xfa000000
[ 16.363018] IRQ 16/cx88[0]: IRQF_DISABLED is not guaranteed on shared IRQs
[ 16.363049] cx88[0]/0: registered device video0 [v4l2]
[ 16.363061] cx88[0]/0: registered device vbi0
[ 16.891442] input: ImPS/2 Logitech Wheel Mouse as /devices/platform/i8042/serio1/input/input4
[ 17.704031] zc3xx: probe 2wr ov vga 0x0000



What can I do to get the volume back? Is the problem related to irq conflicts? Can I assign dedicated irq to each card?

This is my new motherboard "asus P7P55D PRO"
Thanks in advance.

Blackie_Chan
January 25th, 2010, 04:24 PM
The problem had nothing to do with IRQ, it was an issue with my audio drivers. This (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/474359) fixed my problem.