[mythtv-users] LIRC stopped recognizing remote with system upgrade

[Jerry Rubinow]

On Tue, Jul 12, 2011 at 12:07 AM, Jarod Wilson <jarod at wilsonet.com> wrote:

> On Jul 11, 2011, at 11:46 PM, Jerry Rubinow wrote:
>
> > I recently upgraded my MythTV frontend and stupidly wiped my old
> configuration without saving my lircd.conf.  So I was trying to generate a
> new one.  Here's the hw/sw:
> >
> > Lirc 0.8.7, Mythbuntu 11.04.  mceusb IR receiver.  ReplayTV remote (and
> universal remote emulating ReplayTV remote).  lirc_dev and mceusb drivers
> specified in hardware.conf.  If I use the mceusb lircd.conf, everything
> works fine (irw displays the button presses of my MCE remote, mythtv
> responds), so I believe the receiver and software are working correctly.
> >
> > However, if I use irrecord with either the ReplayTV remote or the
> emulated ReplayTV remote, I end up with a file that does not recognize
> proper button presses.  During irrecord, I get lots of length 1 sequences.
>  I should note that in the old configuration (lirc under mythbuntu 10.04),
> the exact same hardware worked perfectly, so I'm not sure what I could be
> doing wrong or what might have changed.
> >
> > If I use the Replay lircd.conf file from the LIRC site, it doesn't
> display any button presses in irw.
>
> There's a minor but critical for non-RC5/6 remotes bug in the mceusb driver
> that might be tripping you up. There's a timeout value in the driver that
> is
> 1/10th the time it should be (10ms instead of 100ms), which causes a reset
> event to trigger in the middle of a relatively long pulse or space sample,
> which does Bad Things to signal interpretation. It should be fixed in
> kernel
> 3.0, not sure if it'll be before release or via the stable tree, and 2.6.39
> should also get it via its stable tree. No clue about kernels that are any
> older than that. There's always media_build though, once the patch is
> merged
> into the media tree (I only sent the pull req this afternoon).
>

Well, that's good to know.  At least now I can stop beating my head against
a wall.  Is there anything within my control I can do in the meantime to get
this to work?  Unfortunately, my URC-R50 remote doesn't seem to have an MCE
code set.  I suppose I could have it learn all the MCE codes...

-Jerry
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