[mythtv-users] pctv 800i audio problem

Mike Adolf mlnx at mho.com
Wed Dec 31 22:17:56 UTC 2008


Hi

I tried to get my pctv 800i card working on Ubuntu 8.04.  But after 
reading that the best solution was to install a new generic kernel, I 
decided to wait until Intrepid (8.10) came out.  I loaded the firmware 
as recommended on mythtv wiki and was excited to see a sharp analogue 
picture. But, no audio.  Audio works on all other applications.  Knowing 
what to try to fix it is well beyond my linux knowledge. I figured there 
are many tuner experts on this list that might help.  Please help from 
going back to Windows!

----------------------------------------
dmesg is full of this:

    38.529786] cx88[0]: irq aud [0x1001] dn_risci1* dn_sync*
[   38.529794] cx88[0]: irq aud [0x1001] dn_risci1* dn_sync*
[   38.529803] cx88[0]: irq aud [0x1001] dn_risci1* dn_sync*
[   38.529808] cx88[0]/1: IRQ loop detected, disabling interrupts
[   38.531168] cx88[0]: irq aud [0x1001] dn_risci1* dn_sync*
[   38.541064] cx88[0]: irq aud [0x1001] dn_risci1* dn_sync*
---------------------------------------
My irq assignments are:

           CPU0       CPU1      
  0:        164          0   IO-APIC-edge      timer
  1:          2            0   IO-APIC-edge      i8042
  8:         46           0   IO-APIC-edge      rtc0
  9:          0            0   IO-APIC-fasteoi   acpi
 12:          4           0   IO-APIC-edge      i8042
 16:      54478       0   IO-APIC-fasteoi   uhci_hcd:usb1, nvidia
 17:      91099          0   IO-APIC-fasteoi   uhci_hcd:usb2, 
uhci_hcd:usb5, cx88[0], cx88[0], cx88[0]
 18:       1778          0   IO-APIC-fasteoi   uhci_hcd:usb6
 19:       1277          0   IO-APIC-fasteoi   CMI8738-MC6
 22:          2          0   IO-APIC-fasteoi   ehci_hcd:usb3
 23:      13510          0   IO-APIC-fasteoi   uhci_hcd:usb4, ehci_hcd:usb7
219:       1665          0   PCI-MSI-edge      eth0
220:      21571          0   PCI-MSI-edge      ahci
NMI:          0          0   Non-maskable interrupts
LOC:      30119      26028   Local timer interrupts
RES:       2397       1806   Rescheduling interrupts
CAL:       3743       3190   function call interrupts
TLB:        424        811   TLB shootdowns
SPU:          0          0   Spurious interrupts
ERR:          0
MIS:          0

-------------------------------------------
What's with the three occurrences of cx[88] on 17?

Anything I can try?

Mike


More information about the mythtv-users mailing list