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Pulse-Eight / libcec

USB CEC Adapter communication Library http://libcec.pulse-eight.com/
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AVR changes input when TV is switched on #454

Open biryets opened 5 years ago

biryets commented 5 years ago

Issue:

When the TV is turned on, after about 10 seconds, the AVR automatically switches its input from the Raspberry Pi to its own home screen, without any user input. The Raspberry Pi and Sony AVR is left on at all times, so this is not related to the Pi turning on.

To reproduce:

  1. Disable CEC on/standby synchronisation on TV, AVR and RPi
  2. Switch TV to AVR and AVR to RPI input
  3. Stop audio or video playback on RPI
  4. Power off TV leaving AVR and RPi on
  5. After 5 mins bring TV out of standby using TV remote
  6. TV will turn on, AVR will initially output RPi and after 5-10 seconds AVR will automatically switch from the RPi HDMI input to its own hone screen.

Hardware:

Software:

Thoughts:

Appears to have similar symptoms with the following issues: https://github.com/Pulse-Eight/libcec/pull/256 https://github.com/Pulse-Eight/libcec/pull/372 https://github.com/Pulse-Eight/libcec/issues/307

It seems like either the Pi is sending some kind of signal it shouldn't be, or the AVR is incorrectly picking up something the Pi is sending and changing input when it's not supposed to.

biryets commented 5 years ago

I've patched my system to reverse the effects of this commit https://github.com/Pulse-Eight/libcec/commit/9cc4c29aada468eed976b70966035ca933029c1c#diff-5e82a8a73dfb85574a98f4b64dfcb842 and now my system is working fine. This may not be the solution for everyone but it works for me.

bummzulu commented 5 years ago

I have an issue that seems to be similar.

I am using LibreELEC with the latest LibCEC Version 4.0.4.

My setup and issue description:

Raspberry Pi with LibreELEC and LibCEC in V4.0.4 and connected to TV (or AVR directly - tried both with the same result) AVR Denon AVR-X2000

When the AVR is turned on and playing music from an anlog source the Raspberry Pi seems to send an unwanted signal and the AVR switched to the HDMI input.

As I am on the latest version I am afraid that the fix from issue 307 does not fix the issue in my scenario.

ghost commented 4 years ago

Same here, and this issue has been plaguing me for some time with different hardware

And it's ALWAYS the same behaviour. A source turns on the TV (be it a PS4, Switch or just the remote), the TV turns on the AVR with the correct source, a couple of seconds pass and the device running kodi with libcec steals the show and switches the AVR to itself. It's beyond infuriating, and what's worse is as far as i know i can't sniff the exact time this happens since kodi takes control of the CEC device, so I'd need a second one connected to the bus

ishioni commented 3 years ago

Same here - Yamaha RX-V679. Multiple TVs - Samsung, LG, Sony, multiple client devices - USB CEC adapter, NUC adapter, Raspberry PI 3B, ODROID C4, all running some form of Kodi. This has plagued me many years and is infuriating

sookoll commented 2 years ago

Same here. Raspberry PI 2, LG TV, always when switch on TV, after 5 seconds osmc took over. It starts after last Kodi update.