[RPi4] My TV remote controller stopped working on KODI!!!

Hi there,

I've been using Kodi (21.2 (Omega)) + LibreELEC (12.0.2) on a Phillips TV without issues moving through all the options & KODI menus with my TV remote controller. But suddenly this morning stopped working. Apparently my TV last update was months ago so I don't know what's going on. From time to time I update manually (when I have notifications) KODI add-ons but nothing else. This could be the problem? A bad add-on update?

I've activated the debug log on the CEC module and I can see a lot of these messages:

2025-01-28 10:14:57.853 T:1440 debug <general>: CecLogMessage - CLinuxCECAdapterCommunication::Write - ioctl CEC_TRANSMIT - tx_status=24 len=1 addr=40 opcode=ffffffff
2025-01-28 10:14:57.853 T:1440 debug <general>: CecLogMessage - << 40
2025-01-28 10:14:57.997 T:1440 debug <general>: CecLogMessage - CLinuxCECAdapterCommunication::Write - ioctl CEC_TRANSMIT - tx_status=24 len=1 addr=40 opcode=ffffffff
2025-01-28 10:14:57.997 T:1440 debug <general>: CecLogMessage - >> POLL not sent
2025-01-28 10:14:58.997 T:1440 debug <general>: CecLogMessage - << Playback 1 (4) -> TV (0): POLL
2025-01-28 10:14:58.997 T:1440 debug <general>: CecLogMessage - << 40
2025-01-28 10:14:59.131 T:1440 debug <general>: CecLogMessage - CLinuxCECAdapterCommunication::Write - ioctl CEC_TRANSMIT - tx_status=24 len=1 addr=40 opcode=ffffffff
2025-01-28 10:14:59.131 T:1440 debug <general>: CecLogMessage - << 40
2025-01-28 10:14:59.273 T:1440 debug <general>: CecLogMessage - CLinuxCECAdapterCommunication::Write - ioctl CEC_TRANSMIT - tx_status=24 len=1 addr=40 opcode=ffffffff
2025-01-28 10:14:59.274 T:1440 debug <general>: CecLogMessage - >> POLL not sent
2025-01-28 10:15:00.274 T:1440 debug <general>: CecLogMessage - << Playback 1 (4) -> TV (0): POLL
2025-01-28 10:15:00.274 T:1440 debug <general>: CecLogMessage - << 40
2025-01-28 10:15:00.407 T:1440 debug <general>: CecLogMessage - CLinuxCECAdapterCommunication::Write - ioctl CEC_TRANSMIT - tx_status=24 len=1 addr=40 opcode=ffffffff
2025-01-28 10:15:00.407 T:1440 debug <general>: CecLogMessage - << 40
2025-01-28 10:15:00.550 T:1440 debug <general>: CecLogMessage - CLinuxCECAdapterCommunication::Write - ioctl CEC_TRANSMIT - tx_status=24 len=1 addr=40 opcode=ffffffff
2025-01-28 10:15:00.550 T:1440 debug <general>: CecLogMessage - >> POLL not sent
2025-01-28 10:15:01.550 T:1440 debug <general>: CecLogMessage - << Playback 1 (4) -> TV (0): POLL
2025-01-28 10:15:01.550 T:1440 debug <general>: CecLogMessage - << 40
2025-01-28 10:15:01.684 T:1440 debug <general>: CecLogMessage - CLinuxCECAdapterCommunication::Write - ioctl CEC_TRANSMIT - tx_status=24 len=1 addr=40 opcode=ffffffff
2025-01-28 10:15:01.684 T:1440 debug <general>: CecLogMessage - << 40

Asking IA told me that this means "Issues with CEC (Consumer Electronics Control) communication, indicating repeated failures to send POLL commands to the TV" but I don't know how to fix it.

Any idea? I really appreciate any help you can provide.

Ivan

Exceuting the "cec-client -l" I can see the there is a device found but no idea if this is correct or not:

LibreELEC:~ # cec-client -l
libCEC version: 4.0.7, compiled on 2025-01-20 01:55:29 by docker@0720c6ca9669 on Linux 6.8.8-2-pve (x86_64), features: P8_USB, DRM, P8_detect, Linux
Found devices: 1

device: 1
com port: Linux
vendor id: 0000
product id: 0000
firmware version: 0
type: Linux

Quote from popcornmix

First make sure you are connected to primary hdmi port (hdmi0 - the one closest to power connection).

Next, disconnect TV from mains for several minutes.

Remove all HDMI connections, and just connect one HDMI from TV to Pi (no AVR etc).

Power on TV first, set to Pi's AV input, then power on Pi 4.

Does CEC remote work? If so you can try connecting the other hdmi devices..

I've change the microHDMI port and now works perfect again. Thanks for the info! I forgot that RP4 has two microHDMI ports. But why is better to use the primary one? I really don't know what port was using before because I have the RPi4 whitin an Argon40 case and I don't know what port internally is connected to the closest to power connection...) Now I'm using this one

Anyway, my issue has been solved so many thanks for you help!!!!

I didn't know! Thanks for the info!