[mythtv-users] hd-3000 recording issues while and watchingrecordings from pvr-500

Mike stuff at dustsmoke.com
Fri Jan 27 15:43:07 UTC 2006


James C. Dastrup wrote:
>> I have a weird problem when i'm watching recordings on my combined
>> frontend/backend. If I'm watching tv on or even a recording from my
>> pvr-500 or 350 while its trying to record a program on the HD-3000 via
>> QAM.. I get a lot of artifacts in the recording.
>>
>> If i were to azap -r channel and watch a recording it goes from LOCKED
>> unlocked LOCKED unlocked LOCKED over and over and over. The CPU is only
>> being used at about 30% during all of this. If I just do azap -r channel
>> without watching anything it is LOCKED all of the time.
>>
>> Anybody have any ideas of how I can track this down and try to fix it?
>> I'm lost with this one.
>>
>> debian sarge
>> 2.6.14.4
>> ivtv 0.4.2 but these aren't even recording when it happens.
>> mythtv 0.18.1
>> sb live
>> nvidia ti4600 with nvidia
>>
>> Thanks
>> -Mike
>>     
>
>
> Just one thought, check your interrupts. This has caused problems
> for me in the past.
>
> cat /proc/interrupts
>  
> >From the dmesg output, it looks as if you may be sharing
> IRQ's with devices that don't like to be shared. The worst devices I've
> seen that often share and often cause problems are USB adapters and 
> NIC's.  Don't load the USB drivers if you don't have to. Also, move some 
> cards around in the PCI slots if possible.
>
>   
This would make sense in that "i only have the problem when sound is 
playing back".
 
0:    6427484          XT-PIC  timer
  1:         10          XT-PIC  i8042
  2:          0          XT-PIC  cascade
  4:          9          XT-PIC  serial
  5:     110884          XT-PIC  ivtv1
  7:      40564          XT-PIC  parport0
  8:          1          XT-PIC  rtc
  9:          1          XT-PIC  acpi
 10:    7099603          XT-PIC  ivtv0, nvidia
 11:     494167          XT-PIC  ivtv2, uhci_hcd:usb1, uhci_hcd:usb2, eth0
 12:    5256246          XT-PIC  cx88[0], EMU10K1, cx88[0]
 14:    3480859          XT-PIC  ide0
 15:    1912283          XT-PIC  ide1
NMI:          0
LOC:          0
ERR:         21
MIS:          0


I guess I should go into the bios and try to somehow shove it on another 
interrupt? Is it supposed to show up twice like that?

-Mike


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