[mythtv-users] HD-PVR Priming Script?
myrdhn at gmail.com
Thu Dec 23 19:07:25 UTC 2010
From: mythtv-users-bounces at mythtv.org
[mailto:mythtv-users-bounces at mythtv.org] On Behalf Of Martin Lynch
Sent: Thursday, December 23, 2010 12:28 PM
To: mythtv-users at mythtv.org
Subject: [mythtv-users] HD-PVR Priming Script?
Aside from my ongoing RBlaster woes, my new HD-PVR routinely (read: at
least twice a day during heavy use) fails. By this I mean that stopping
watching live TV in myth doesn't stop the HD-PVR - the blue light on top
remains on, and myth can no longer use that input thereafter. Likewise,
live TV fails a couple of times a day with an error message along the
lines of "video failed - too many buffer overruns". The HD-PVR stays
lit. If I manually turn the HD-PVR off and then on, myth often doesn't
recognize it - the backend gives an error that there are no inputs
attached. As near as I can figure out, my entire system requires a
reboot at this point in order for the HD-PVR to work (ie I've tried
removing the capture card in mythtv-setup and replacing it, which does
not work, etc.).
What I'm wondering is: would it be possible to write a script which
tests the HD-PVR and, on a bad result, power cycles it or, if necessary,
restarts the machine after a suitable warning and delay? Something like:
a minute prior to a scheduled recording, attempt a 2 second recording
and then check the file size. If >0, OK else power cycle the unit. I
have no idea how to actually do this; nor do I know whether it is
possible to trigger a power cycle or reset of the HD-PVR via
instructions over the USB cable. I just got to thinking about this
because I've used firewire for four years with excellent results, and if
I recall, the firewire capture code includes a priming script that makes
sure a solid connection is established, and I thought something similar
might be possible with the HD-PVR.
Man, the HD-PVR makes me yearn, desperately, for the days of my firewire
I've not seen or heard of this yet. I have an HDPVR as well and I
occasionally have to restart it, maybe once a month, when it gets out of
sync with myth and the cablebox. When this happens it trys to record/watch
live and fails to get a signal fast enough for myth and the backend fails
the tuner. At this point I turn off and on the hdpvr and have to restart the
backend on the machine it is connected to.
A script would be a nice idea to fix certain things. Wish there was some way
we could trigger a reboot of the hdpvr then I could setup said script to
reboot and restart the backend for me.
More information about the mythtv-users