[mythtv-users] CEC support on Raspberry Pi 3

Sat Jul 9 15:47:34 UTC 2016

Well I feel a like a goat.  Turns out that my TV (maybe this is standard?)
only supports 3 CEC playback devices, so when mythtv would try to register
itself, there were no more addresses available for playback devices which
is I guess why cec-client registered itself as a recording device.  Turning
off one of the device's CEC support has given room for mythtv and the CEC
support is working great now.

My natural "enter" key on the remote does not map to anything, but that's
for another day.  Thanks so much for your help!

On Sat, Jul 9, 2016 at 10:47 AM Matthew Zimmerman <mzimmerman at gmail.com>
wrote:

> Peter, thank you, great job on this already again, it was fantastically
> easy to get this far.
>
> Mike, good catch.  I had somehow never stumbled upon Peter's apt source
> but instead loaded the package using dpkg manually as instructed at
> https://github.com/bennettpeter/mythtv/releases
>
> Peter, you're right, it's something with the "playback device"  --
> cec-utils now reproduces the problem.  I will play around with this some
> more and figure out what the difference is.  Thank you!
>
> pi at raspliving:~ $ cec-client -t p
> == using device type 'playback device'
> CEC Parser created - libCEC version 3.0.1
> no serial port given. trying autodetect:
>
> path:     Raspberry Pi
> com port: RPI
>
> opening a connection to the CEC adapter...
> DEBUG:   [              57]     Broadcast (F): osd name set to 'Broadcast'
> DEBUG:   [              58]     InitHostCEC - vchiq_initialise succeeded
> DEBUG:   [              58]     InitHostCEC - vchi_initialise succeeded
> DEBUG:   [              58]     InitHostCEC - vchi_connect succeeded
> DEBUG:   [              59]     Open - vc_cec initialised
> DEBUG:   [              59]     logical address changed to Free use (e)
> NOTICE:  [              60]     connection opened
> DEBUG:   [              60]     processor thread started
> DEBUG:   [              60]     << Broadcast (F) -> TV (0): POLL
> DEBUG:   [              60]     initiator 'Broadcast' is not supported by
> the CEC adapter. using 'Free use' instead
> TRAFFIC: [              60]     << e0
> DEBUG:   [             120]     >> POLL sent
> DEBUG:   [             120]     TV (0): device status changed into
> 'present'
> DEBUG:   [             120]     << requesting vendor ID of 'TV' (0)
> TRAFFIC: [             120]     << e0:8c
> TRAFFIC: [             313]     >> 0f:87:00:00:39
> DEBUG:   [             313]     TV (0): vendor = Toshiba (000039)
> DEBUG:   [             313]     expected response received (87: device
> vendor id)
> DEBUG:   [             313]     replacing the command handler for device
> 'TV' (0)
> NOTICE:  [             313]     registering new CEC client - v3.0.1
> DEBUG:   [             313]     detecting logical address for type
> 'playback device'
> DEBUG:   [             313]     >> TV (0) -> Broadcast (F): device vendor
> id (87)
> DEBUG:   [             313]     trying logical address 'Playback 1'
> DEBUG:   [             313]     << Playback 1 (4) -> Playback 1 (4): POLL
> TRAFFIC: [             313]     << 44
> DEBUG:   [             553]     >> POLL sent
> DEBUG:   [             553]     logical address 'Playback 1' already taken
> DEBUG:   [             553]     Playback 1 (4): device status changed into
> 'present'
> DEBUG:   [             553]     trying logical address 'Playback 2'
> DEBUG:   [             553]     << Playback 2 (8) -> Playback 2 (8): POLL
> TRAFFIC: [             553]     << 88
> DEBUG:   [             733]     >> POLL sent
> DEBUG:   [             733]     logical address 'Playback 2' already taken
> DEBUG:   [             733]     Playback 2 (8): device status changed into
> 'present'
> DEBUG:   [             733]     trying logical address 'Playback 3'
> DEBUG:   [             733]     << Playback 3 (B) -> Playback 3 (B): POLL
> TRAFFIC: [             733]     << bb
> DEBUG:   [             914]     >> POLL sent
> unable to open the device on port RPI
> DEBUG:   [             914]     logical address 'Playback 3' already taken
> DEBUG:   [             914]     Playback 3 (B): device status changed into
> 'present'
> ERROR:   [             914]     AllocateLogicalAddresses - failed to
> allocate device '0', type 'playback device'
> ERROR:   [             914]     failed to find a free logical address for
> the client
> ERROR:   [             914]     failed to register the new CEC client -
> cannot allocate the requested device types
> ERROR:   [             914]     failed to register a CEC client
> DEBUG:   [             914]     unregistering all CEC clients
>
>
> On Sat, Jul 9, 2016 at 9:48 AM Mike Bibbings <mike.bibbings at gmail.com>
> wrote:
>
>> On 09/07/16 13:57, Matthew Zimmerman wrote:
>>
>> So I have a Raspberry Pi 3 running mythfrontend 0.28 on raspbian jessie
>>  with which overall works beautifully, but the icing on the cake would
>> be to get CEC functionality working so I can control mythfrontend with the
>> TV remote (definitely a wife-acceptance-factor!)
>>
>> 2016-07-09 08:38:06.693291 C  mythfrontend version: fixes/0.28
>> [v0.28-32-g6eff083] www.mythtv.org
>> ---- SNIP ------
>> 2016-07-09 08:38:08.833406 I  CECAdapter: Found 1 CEC devices(s).
>> 2016-07-09 08:38:08.833503 I  CECAdapter: Device 1: path 'Raspberry Pi'
>> com port 'RPI' SELECTED
>> 2016-07-09 08:38:08.833522 I  CECAdapter: Trying to open device Raspberry
>> Pi (RPI).
>> 2016-07-09 08:38:08.834810 I  CECAdapter: connection opened
>> 2016-07-09 08:38:09.158714 I  CECAdapter: registering new CEC client -
>> v3.0.1
>> 2016-07-09 08:38:09.910458 E  CECAdapter: AllocateLogicalAddresses -
>> failed to allocate device '0', type 'playback device'
>> 2016-07-09 08:38:09.910497 E  CECAdapter: failed to find a free logical
>> address for the client
>> 2016-07-09 08:38:09.910608 E  CECAdapter: failed to register the new CEC
>> client - cannot allocate the requested device types
>> 2016-07-09 08:38:09.910679 E  CECAdapter: Failed to open device.
>> 2016-07-09 08:38:09.910695 E  CECAdapter: failed to register a CEC client
>> 2016-07-09 08:38:11.336293 I  CECAdapter: Closing down CEC.
>>
>> https://www.mythtv.org/wiki/Raspberry_Pi states that CEC support should
>> work in this case.  This isn't a hardware thing because cec-util works
>> beautifully.
>>
>> How can I debug this further?  I'm not shy of writing some code to fix
>> it, although my C is not great.
>>
>> Thanks for this working as well as it does!
>>
>>
>> _______________________________________________
>> mythtv-users mailing listmythtv-users at mythtv.orghttp://lists.mythtv.org/mailman/listinfo/mythtv-usershttp://wiki.mythtv.org/Mailing_List_etiquette
>> MythTV Forums: https://forum.mythtv.org
>>
>> A few things to try:
>>
>> Upgrade your version of mythtv-light, as of writing I have
>> v0.28-40-g7a4e9ab, which is later than the version you have
>> see https://www.mythtv.org/wiki/MythTV_Light
>>
>> I had to install libcec3 (sudo apt-get install libcec3)
>>
>> Mike
>>
>> _______________________________________________
>> 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/20160709/ebef0a4f/attachment.html>