Hear left audio channel through both speakers

[grahamh]

This is a difficult one, but you really need to eliminate each part of the chain one by one.

If it’s a problem with the file, it will be limited to that file. I think you said it occurs with many files but please confirm.
If it’s a problem with the Pi, you should see the same problem running Raspbian.
If it’s a problem with OSMC, then running Raspbian or LibreELEC may solve it. Then let us know.
If it’s a problem with the TV, then you will be getting two left channels out of the TV speakers (you were asked to check this).
If it’s a problem with the way the TV feeds the headphone output or a mechanical problem with the TV headphone socket, you should get L and R channels through the TV speakers when your speakers are not attached.

@ThijssjihT1

when I go through the menu too slowly, the tv hud keeps coming up with each press on the remote, telling me I use hdmi1

This doesn’t normally happen, (although I can reproduce the delay in sound coming back - seems to be new since Leia.) It suggests some poor communication between the Pi and the TV - either the Pi hardware, the cable or the sockets either end.

HTH

[JimKnopf]

@JimKnopf

Could you test with the TV’s built-in speakers and without the Logitech speaker set?

unanswered since March 22nd

Clear problem description:
Do you mean only the left channel can be heard on both speakers or the left speaker plays the left channel and right speaker plays left+right channels from the audio source?

What TV (brand + model) is it?