[mythtv-users] lirc (usb) stops working after a while (hal issue?)

Simon Ferber simon at ist-schlau.de
Sat Mar 6 09:49:44 UTC 2010


Simon Ferber wrote:
> jgmtfia Mr wrote:
>> On Thu, Mar 4, 2010 at 08:01, Simon Ferber <simon at ist-schlau.de> wrote:
>>
>>  
>>>>>> I found a strange behaviour I can't stop: If MythTV is up and
>>>>>> running
>>>>>> and
>>>>>> nobody uses it for a while (e.g. 30 minutes), the remote isn't
>>>>>> working
>>>>>> at
>>>>>> all. If I push the power button (at the PC, not the one on the
>>>>>> remote)
>>>>>> very
>>>>>> shortly, it starts working again as if nothing happened. The logs
>>>>>> doesn't
>>>>>> show any change though.
>>>>>> As the workaround "pushing the power button" always solved it
>>>>>> temporary,
>>>>>> I
>>>>>> think it's caused by the hal power management. I tried to add
>>>>>> usbcore.autosuspend=-1, but the behaviour didn't change.
>>>>>> Or does xorg with it's event interface blocks the remote?
>>>>>>           
>>>>> Yesterday I tested with acpid running and without acpid running. Same
>>>>> effect: After a while not using the remote, it doesn't react on key
>>>>> presses.
>>>>> One short push onto the PCs power button and the remote is up and
>>>>> running.
>>>>>         
>>>> I have also noticed a similar pattern of behavior, but use a keypress
>>>> on the attached keyboard to bring the system back to a state where it
>>>> listens to the lirc remote.
>>>>       
>>> I didn't try a keyboard yet, as the frontend is installed without
>>> keyboard.
>>> Did you find a reliable solution? Getting up after every show makes
>>> a remote
>>> a bit senseless...
>>>     
>>
>> Sounds like your problem is a bit different.  Mine only occurs when
>> the system has been sitting for some time.  Usually after a show, the
>> remote works... but then again sometimes I need to press a key on the
>> keyboard to get Myth to switch from playback to the recorded programs
>> screen.
>>   
> Yes, it's really different. Yesterday I didn't try to solve it, but
> used the system. It occures only, when MythTV is idle. When I watch tv
> or a movie, everything works fine. Even after 2 hours.
> My guess is still something with X power management, usb power
> management, hal, event interface, ...? But I don't really know how to
> debug, as the logs are very quiet about it...

One tip was to push the remote buttons a couple times to wake lirc up.
But unfortunately lirc has very wealthy sleep and nothing happens. :(



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