[mythtv-users] Mangled screen video with Live TV or recorded programs
roland at astrofoto.org
Sun Nov 12 00:26:51 UTC 2006
>>>>> "me" == Roland Roberts <roland at astrofoto.org> writes:
me> A couple of weeks ago, I started experiencing "mangled" video in
me> some recordings. I'm running on FC5 with the atrpms. I think I've
me> tracked this to updating to the mythtv 0.20-143 rpm which I did on
me> October 29. Recordings before that date have no trouble, *some*
me> afterwards do. I was also able to confirm that the problem happens
me> with LiveTV but does not appear on the "real" TV hooked up to the
me> same antenna/cable.
me> The mangling is intermittent. I'll watch fine for several minutes,
me> then the frame gets mildly jumbled, then it goes back to normal. I
me> could probably provide a suitably downsampled copy of a few seconds
me> worth of video to anyone who wants to see the effect.
Oops, I failed to say anything about my hardware....
The host is a dual Xeon 2.4 GHz, the system has 2GB of RAM, and the
tuner is a Happauge PVR-500. The host also runs some low-priority
high-CPU jobs in the background. It's been that way for as long as I've
been running MythTV, and the problem persists even if I shut down the
background jobs. I've also run MythTV both as root and as a normal user
with no change in the problem.
It appears that the problem occurs more often (1) during commercials,
which I can live with since I skip them anyway, and (2) whenever a
program puts up a bar at the bottom with text information, e.g.,
watching a PBS problem when they put up the current person's name and
info. I don't know why that might have any effect, but it *seems* to.
PGP Key ID: 66 BC 3B CD
Roland B. Roberts, PhD RL Enterprises
roland at rlenter.com 6818 Madeline Court
roland at astrofoto.org Brooklyn, NY 11220
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