[mythtv-users] PVR350 Remote Question

Nick knowledgejunkie at gmail.com
Fri May 6 13:49:09 UTC 2005


On 5/6/05, Rob Miracle <robmiracle at earthlink.net> wrote:
> I got my IR blaster somewhat working tonight, in that I can change channels
> with the shell script that calls "irsend" from the command line.
> 
> However, when I'm at the TV using the PVR350's remote and I try and change
> channels with either the Channel Up/Down button or the up/down arrow around
> the Okay (like you can with the Hughes DTV boxes), bad things happen.   The
> up/down arrows freezes the screen for a while (long enough for oh say
> mythfrontend to core dump) and it dies.   I have to restart the back end
> and then restart the frontend to get it to work and in many cases I have to
> run a channel changer script (pops up an X box that lets you select your
> inputs, channels, cable mode, etc.) and put the tuner back on ch 3.
> 
> If I use the Chan UP/DN buttons, I get a black screen then the core
> dump.   If I enter the channels directly, I see what looks like Myth TV's
> program guide change, but the TV doesn't appear to change with it.

This may be due to the way LIRC is setup - the /etc/lircd.conf will
map your remote buttons to the IR codes picked up by the receiver.
Your ~/.lircrc and ~/mythtv/lircrc will then map particular buttons to
particular actions in myth and other apps. Maybe these buttons are not
configured correctly for mythtv?

> I'm piping my DirecTV into the cable jack (Tuner 0) on the 350.  I have the
> DTV box to output on channel 3.  I've told Mythtvsetup (0.18 btw, FC3 using
> Jarrod's setup), to use the change_chan.sh script from a previous post here
> about my IR problems.  I tell it to start on channel 3 and there is a "live
> tv" channel, which I also set to 3, but it seems to change depending on
> what DTV channel I last set to.

Are you really outputting from your cable box via coax into the cable
tuner? If so, do you need the channel change script at all? I'd have
thought the tuner itself would be able to change channels (channels
having been setup in mythtv) without needing a separate channel change
script and IR Blaster.

For example, my cable TV is fed into my PVR-350 via S-Video. As this
is just receiving whatever channel the cable box is tuned to at the
time, I need the channel change script to manually change to cable box
for me.

The livetv starting channel will remember the last channel watched,
and tune to that when livetv is resumed.

Nick


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