[mythtv-users] Choppy Video Problems

<SB> Childe Roland rolandchilde at gmail.com
Sun May 22 18:47:03 UTC 2005


I am having a problem with my new KnoppMyth box.

1. Everytime I change the channel the video and sound skip some.
Sometimes this continues, but can be fixed by pausing the video and
waiting a few seconds
2. Both Live tv and recorded seem to have extremely low frame rates.
The video is much more choppy than it should be

I don't think it is my system (see specs below) and the TV Tuner
should have hardware encoding.

I think these problems are both related to the HDD. When I run the
"hdparm -Tt" test I get a cached read in the 400's (MB/sec), but the
timing buffered disk reads only gives me between 9 and 20 MB/sec.
The drive is extremely old and only supports ATA 33.

Could this be the problem?? I'd like to upgrade to get more space, but
it won't be worth it if it's not going to give me a full 30 fps. Also,
is it perhaps a setting in MythTV that I have missed?


My specs -
Athlon Sempron 2400+
512 MB DDR 333
20 GB ATA-33 HDD
Hauppauge PVR-150 (non MCE)

Machine Status:
Load: 1.30, 0.61, 0.23
RAM: 501MB, 396 MB used, 105 MB (20%) free
Swap: 490 MB, 0 used
--
=============================
<SB> Childe Roland
"I will show you fear in a handful of jellybeans."


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