[mythtv-users] Choppy video after update (ATrpms packages on FC5)

[Void Main]

I have also sent this message to the atrpms-users list
as I am not sure if my problem is with MythTV, the
ATrpms build of MythTV, ivtv, or somewhere else:

I built an FC5 MythTV box back on the 16th of
September and updated it with all the latest updates
and used MythTV RPMs from ATrpms. 

The hardware:
Compaq 866Mhz P3 w/384MB RAM
250GB hard drive
Hauppauge PVR-350

This box serves as both a frontend and a backend and
uses the video out from the PVR-350 to my TV.
Everything was working absolutely perfectly in all
areas of recording, playback, remote control etc. I
had also installed the MythTV frontend on my laptop
and connect to the above machine to watch other video
or TV shows and it worked flawlessly.

My trouble started last night when I decided to
install the frontend on another desktop located in my
kitchen. I added the ATrpms yum repo to the desktop
and installed the mythtv-frontend. When I tried to
connect to the backend there was a protocol mismatch.
I realized the MythTV RPMS had been updated to newer
version in the repository so I thought no problem,
I'll just "yum update" on the MythTV server and
upgrade everything to the latest. Well, the remote
frontends seem to still work find with the newest
MythTV updates but the main box that servers as both
the frontend and backend now has choppy video most
noticable when trying to watch live TV and seems to be
worst when on screen menus are visible. It's like a
stutter every few seconds.

It is as if the frontend is now taking more CPU than
it did before the upgrade. I have also done a couple
of transcodes since the upgrade and these also seem
slower. I was getting over 20 frames per second when
transcoding (~25fps if I recall) and now I get less
than 20fps (~17fps). Top shows both Xorg and
mythfrontend eating up all the CPU (~50% each). There
is no other process that seems to be taking up any
significant amount of CPU. There is one that does show
up near the top of the top list that I don't recall
seeing before "ivtv-enc" but it is only using around
1% of the CPU. 

Cpu(s): 60.6% us, 39.4% sy,  0.0% ni,  0.0% id,  0.0%
wa,  0.0% hi,  0.0% si,  0.0% st
Mem:    384508k total,   379452k used,     5056k free,
     340k buffers
Swap:   787176k total,    19736k used,   767440k free,
   113392k cached

Top processes:
Xorg - ~48%
mythfrontend - ~46%
mythbackend - ~3%
ivtv-enc - ~1.5%

To see the exact versions of things that I was running
both before and after yesterdays update it is all
contained in my yum.log which can be found here:

http://voidmain.is-a-geek.net/files/misc/mythtv-yum.log

Obviously all entries from the 10th of October were
files upgraded on yesterday's "yum update". All
entries before that date in the log were files that
were installed that worked perfectly.

I am curious if anyone else has run into this and if
there is a resolution. I would like to go back to the
previous versions that I know work but those versions
no longer appear in the repository. Is there an
archive somewhere of the old ATrpms files? Any
suggestions?

Thanks for any help!


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