[mythtv-users] suggestions for improving my external channel changing script

[Brad DerManouelian]

On Oct 25, 2007, at 8:43 AM, Joe Auty wrote:

> Brad DerManouelian wrote:
>> On Oct 24, 2007, at 10:49 PM, Joe Auty wrote:
>>
>>> Hello,
>>>
>>> Often times my IR blaster external channel changing script does not
>>> change to the correct channels. When the script is invoked, video
>>> becomes very jerky as if the CPU is temporarily pegged, and  
>>> therefore
>>> timing is often messed up. Sleep times seem inconsistent, and
>>> therefore
>>> the results of this script are inconsistent.
>>
>> It sounds like you're having an IRQ conflict between your blaster and
>> your capture card. Try swapping slots and see if that fixes your  
>> issue.
>
> My capture card is a PCI card and my blaster is a homemade serial IR
> blaster. Would this still apply even though they are different  
> device types?

It could. Check your interrupts with cat /proc/interrupts and see if  
you're sharing your ivtv device with your serial device on the same IRQ.