Confirmed, latest nightlies with kernel 6.0.6 operate normally without above tar patch. Thank you.
Posts by Deri
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Tv off overnight and turned on with no problems. I realised that I had patched the kernel of nightly 2509 (the last in the kernel 5 series) so I tested again with the latest nightly, confirmed the oops with tv off/on, applied the devel tar and all is now fixed. Again, thank you. Please confirm when this patch to kernel 6.0.6 makes it into the nightlies.
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My initial test is very promising. I turned the tv off, waited for a soft click (solenoid?) which I assume means it has gone into a deep sleep mode, turned it back on (another click) and kodi was still running - no oops in the journal. I will report again when it has been off overnight, but I am pretty confident it is fixed, thanks to everyone involved.
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I shall repeat the test tonight with the 25/09 nightly, to see if the same warning occurs (to see if this is a red-herring or not).
No, it was a red herring. The 25/09 version has the same warnings.
I have noticed that the latest nightly does have the same kernel oops as in the original log. So favourite is the popcornmix fix scheduled for linux 6.1, maybe it has not been back ported to 6.0.5 properly.
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Deri can you please test with the latest nightly build (2022-10-30)? It includes an RPi kernel update with the change mentioned by popcornmix
so long,
Hias
Just did a test, it is different, no kernel oops, and all kodi threads continued running, but still no video signal when tv is turned back on. The log is here.
The TV was brought out of standby at 17:17 and you can see several CEC messages when it comes to life and then pressed Ok on the remote.
There is a warning "FIXME" message at 16:25:14.235, which is roughly the time I pushed the power button on the tv remote to put it into standby.
I shall repeat the test tonight with the 25/09 nightly, to see if the same warning occurs (to see if this is a red-herring or not).
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I have stayed on LibreELEC-RPi4.arm-11.0-nightly-20220925-b1d73ad and the Pi is running fine for over 160 hrs now.
I suspect this is using the last kernel 5.15, later nightlies are using 6.0.
Looks like you are using the Nightly/kodi 20 build. I assume that stable/matrix build works okay?
The error relates to i2c, and may be fixed by this.
Yes, it seems to have started with the move to kernel 6.0. I will keep an eye out for kernel 6.1 in the nightlies and test again.
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This is the same as reported by MatteN in the thread "RPi 4B - USB issues with latest kernel" however that thread was concerning a problem with a Mygica DVB USB stick, but then got added to by this particular problem.
Kodi is left running all the time and the LG is put into standby with the remote. After a while, the TV is restarted and the message no video signal appears. At this point I observe:-
Running top shows the status of kodi.bin is "Z" (zombie).
Systemctl stop kodi fails to stop main thread.
Systemctl reboot takes a very long time, but does fix the problem.
Switching to live tv and back to RPI does nothing.
The time the TV is in standby has an effect, if it is off for a short time the problem does not arise. In the attached log it took about 15 minutes for kodi to go into zombie state. This is probably because the TV may do Oled pixel cleaning when put into standby so does not go into deep sleep immediately.
The log was produced with debug turned on and libCEC chosen. The tv was put into standby about 01:00 and turned back on at 01:17.
