[mythtv-users] HD-PVR: Encoding Errors Running 0.22 ( SOLVED )
Mike Smith
easygreenus at yahoo.com
Thu Feb 25 06:01:29 UTC 2010
Readers Digest Version - get a new USB 2.0 card. For gory
details, read below.
I think it is solved. I have been having problems recording using the
HDPVR. I would just skip large segments of video. In my case,
it seem more prevalent recording fast action, like a football or
basketball game.
Right now the problem seems to be with the USB 2.0 built into my
motherboard.
My server sits in a storage room in the basement doing its job,
which is backend stuff. NFS, Samba, MythTV, LDAP, web server,
etc. I rarely touch the keyboard. So, I can't remember ever plugging
anything into the USB until I purchased the HDPVR last fall.
Two weeks ago, I purchased an external hard drive that connects to
the USB. I have a my data storage mirrored, and I do a backup to
a third drive every night. I wanted an offsite copy of my data.
I tried to copy a 1.6GB file to the external drive. After 50 minutes,
I'd only copied around 90MB. Connected the drive to my wife's
laptop, and a 1.3GB file copied in 84 seconds. Strange. Drive
was formatted NT32, for I formatted it ext3. Still slow. I connected the
drive to the built-in USB on one of the Mythfrontend PCs. Copied the
1.6GB file in 90 seconds.
I have no idea what is wrong with the backend server. I've run USB performance
tests using FC10, FC11, FC12. I don't think its software. I upgraded the MB firmware
to the latest available. No help.
Motherboard is an ASUS P5GD2 Premium. It has eight external USB 2.0 ports ( 4 back,
2 front, 2 risers I'm not connecting to anything. I've connected the external disk drive to
everyone ( with and without the HDPVR connected ). Same sad performance. No errors
in /var/log/messages, or dmesg.
I took the lazy route. Instead of spending hours researching the USB on this MB and trying to
get support from ASUS, I bought a PCI Express USB 2.0 board. Now, my file transfers are
under 90 seconds.
Best of all, I recorded a whole basketball game in HD without a single noticeable skip.
Prior to the new board, I would have a skip every minute or two on basketball or football
games.
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