[mythtv-users] CEC support on Raspberry Pi 3

[Mike Bibbings]

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 <http://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!
>
>
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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

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