[mythtv-users] MythTV Raspberry Pi2 - GPIO IR - Multiple Key-presses from remote control

[Larry Kennedy]

On Thu, Jan 7, 2016 at 4:41 AM, Joseph Fry <joe at thefrys.com> wrote:

>
>
> On Wed, Jan 6, 2016 at 6:22 PM, Kingsley Turner <krt at krt.com.au> wrote:
>
>> Greetings,
>>
>> So I have my Raspberry PI GPIO Infra-Red remote mostly working fine.
>>
>> I can see messages debugging with 'irw', all the codes are correct, etc.
>>
>> However in mythfrontend (and irw) I quite clearly get multiple
>> keypresses; 99% double, sometimes single, sometimes triple.
>> e.g.:
>> pi at raspberrypi:~ $ irw
>> 00000000807f9867 00 KEY_ENTER noontec_a6
>> 00000000807f9867 01 KEY_ENTER noontec_a6
>>
>> Reading many of the various posts for MythTV (and XBMC, etc.) the
>> proposed solutions are not applicable to RPi.
>>
>> One thing I have tried, is creating an /etc/lirc/lircrc file which
>> specifies button handling:
>>
>> begin
>>     button = KEY_ENTER
>>     delay  = 5
>>     repeat = 3
>>     #prog   = irexec
>>     #config = echo KEY_ENTER
>> end
>>
>> I added a clause like this for every key.
>>
>> If I run 'irexec' with those two commented-out lines back in, and press
>> keys, the remote does behave as-if the lircrc file has made a difference.
>> Indeed, changing the delay & repeat allowed me to tune button pushing so
>> there was no unwanted repeats - but only for irexec.
>>
>> Should I expect 'irw' and MytvTV to respect this lircrc file ?
>>
>> Is there something I'm missing?
>>
>
> First of all... IRW doesn't really use your lircrc, so those options will
> have no effect.... it is showing every signal the receiver gets.
>
> You are doing the right thing playing with the delay and repeat, but
> should be testing in mythtv or irexec or whatever.... not lirc.
> Additionally, if you really hate seeing the repeats in IRW, you can
> actually have lircd ignore repeats using the suppress_repeat directive in
> your lircd.conf. see: http://www.lirc.org/faq.html
>
> Every time I press a button on my remote control irw will show at least 5
>> events (or any other number > 1) independent of how short I try pressing
>> the button.
>> In most cases this is the correct behavior. Many remote controls send the
>> same code multiple times to make sure that at least one code comes through
>> to the receiver when you press a button for a short time. The default
>> .lircrc setup ignores repeat events. If you want to use the button to do
>> things repeatedly when it is being hold down, like e.g. increasing the
>> volume or something similar, you should use the *delay* token (will be
>> available in 0.7.0) in your .lircrc file.
>> You can identify such remotes by the fact that irrecord usually will add
>> a *min_repeat* field for this remote control to the lircd.conf config
>> file.
>> If you want to suppress those repeats already at lircd level, you can
>> also add *suppress_repeat x* to the lircd.conf config file where *x* is
>> the number of repeats you want to suppress. This feature is available in
>> lircd since release 0.8.6.
>
>
> Sometimes you can tweak other things in lircd.conf to resolve this
> problem... such as your gap, repeat_gap, min_repeat, etc.
>
> If you used irrecord to create your remote file, you might want to do it
> again and make a point to hold each button for at least a second....
> irrecord should have detected that your remote is sending repeats and set a
> min_repeat value in the lircd.conf.   If you didn't use irrecord, and your
> using some pre-generated remote configuration... you might want to try
> using it.... I have found that some of the prefab ones are not quite right
> for some hardware.
>
> I'm not sure if this might impact the pi... but it's also worth a shot:
> https://www.mythtv.org/wiki/MCE_Remote#Arrow_Buttons_Repeat
>
> Good luck... I'm sure you'll figure it out eventually.
>
>

If you are running lircd and a modern kernel,both could be responding to
your key presses.  See section entitled, *Double presses for certain
buttons*, at this link on how to verify this and write a udev rule to fix
it:

https://www.mythtv.org/wiki/LIRC



>
> _______________________________________________
> mythtv-users mailing list
> mythtv-users at mythtv.org
> http://lists.mythtv.org/mailman/listinfo/mythtv-users
> http://wiki.mythtv.org/Mailing_List_etiquette
> MythTV Forums: https://forum.mythtv.org
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mythtv.org/pipermail/mythtv-users/attachments/20160112/29218060/attachment.html>