[mythtv-users] channel changes via script suddenly stopped working--diagnose help

[Larry Roberts]

On 4/13/2013 3:53 PM, Larry Roberts wrote:
>> Looking at the code, you're doing an append '>>' to the cc.log, so if 
>> the script were running twice you'd see two lines in the log, so 
>> forget that.  I'd be tempted to suggest something really weird like 
>> an odd multi-path reflection, but that wouldn't explain why it's OK 
>> from the command line.   Are there any other IR blasters nearby that 
>> are also triggering?  Do you have any other machines on the network 
>> that might be doing some sort of remote irsend?  What happens if you 
>> firstly rename rename the irsend executable and then the equivalent 
>> name in the code.  This way you can  discount it being called from 
>> elsewhere.  Other things I'd try are rebooting everything (perhaps 
>> with a power cycle); putting the IR blaster in a cardboard tube and 
>> taping it to the receiver so no stray IR gets in, and calling an 
>> exorcist (your milage may vary).
>>
>> -- Paul --
>> _______________________________________________
>
> Do you happen to know the # of a good exorcist?  I shutdown and pulled 
> power from the box.  The IRblaster is taped to the front of the cable 
> box and its in a utility closet with nothing else around. I'm really 
> at a loss as to why it will work perfectly from the command line (I'm 
> doing this a root) but will not work when myth does it.  Is it 
> actually mythbackend that calls the script? I have mythbackend running 
> as root but I'm not sure if thats the user that spawns it or not.  I 
> haven't messed with it in so long I honestly dont recall how I set it up.

So its definitely a problem with how myth is calling the script. What I 
would like to do is call a script from myth, and as part of that script 
it would call the right script.  As a very non-scripter I'm not sure how 
to do that or for that matter if it would make a difference?  Perhaps it 
is an environmental problem with myth that is causing it to duplicate 
the data sent.  I did rename irsend and change the script to reflect is 
so if something else  is calling it I dont know what or how.