[mythtv-users] LiveTV without the disk buffering

[Brad DerManouelian]

On Jan 7, 2008, at 7:45 PM, Mike Heffner wrote:

> Steve Hodge wrote:
>>
>> 7GB per hour is only 2MB per second. If your disk can handle  
>> writing and
>> reading simultaneously at that speed there is something wrong. Disk
>> should not be a bottleneck for a single tuner MythTV system, even  
>> with HD.
>>
>
> Yep, I tried reformatting from reiserfs to ext3 but the video is still
> choppy. It appears that this is a problem with the CPU. mythfrontend  
> is
> running at about 180% CPU on a Pentium 4 2.4GHz with hyperthreading in
> LiveTV mode. I've turned off any deinterlacing of the playback stream.
>
> Does anyone have experience with the pcHDTV 5500 card? What are the  
> CPU
> requirements for this card in LiveTV mode?

It sounds like it might be your video driver. It should be handling a  
lot more of the video than it is currently. What card are you using?  
What drivers?