[mythtv-users] LircChannelChanger / HD Channels - Going to wrong channel

Karl Newman newmank1 at asme.org
Tue Apr 1 20:20:26 UTC 2014


On Tue, Apr 1, 2014 at 1:17 PM, Karl Newman <newmank1 at asme.org> wrote:

> On Tue, Apr 1, 2014 at 11:48 AM, Philip Isaacs <showcasefloyd at gmail.com>wrote:
>
>> Hey guys,
>>
>> The IR Blasting to my STB is working well now except for one issue. Not
>> every time (maybe 20% of the time) the STB seems to change the channel
>> before the channel changing script is finished.
>> So I end up on the wrong channel.
>>
>> It happens mostly with the HD channels because they have 4 digits. So for
>> instance if I want to record something on channel 1004 (NBC HD in my area)
>> the channel will end up on channel 100 or 10 because it changes to quickly.
>>  But 3 and 2 digits works pretty flawlessly.
>>
>> I've looked at the configurations for this script and there are a lot of
>> options and I don't know how to delay the entire sequence of numbers until
>> the end since it seems like it's sending an irsend command for each number.
>>
>> Any ideas on how to stop this from happening?
>>
>> Floyd
>>
>
> You probably need to reduce the delay between digits. Note that there is a
> "delay" which controls the time between digits sent, and an "rdelay" which
> I think is an additional delay if the digit is repeated (i.e., 1224 would
> delay more between the "2" digits to avoid the cable box's debounce which
> might exclude the second "2"). I use delay=0.2 and rdelay=0.2 for my cable
> box and I haven't had a channel change failure since I made that change (a
> year ago?). Previously my timing was too aggressive and it would sometimes
> get the wrong channel. But I only have 3 digit channel numbers max...
>

Oops, forgot there is another parameter called "channeldigits" which you
should set to 4. In fact it's probably a good idea to look through the help
for LircChannelChanger and set the parameters appropriately.

Karl
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