Yeah, that sounds exactly like the same problem, quoting their report:
“the machine won’t power off. In the logs you can see the steps for shutting down the OS, but sometimes the machine stays powered on. The power led is on, screen is black, no response to keyboard or trackpad actions. System has to be powered off by a long press on the power button.”
But again, there are no log messages whatsoever, it just hangs in a half-shutdown state, almost as if Linux finished shutting down but the BIOS didn’t get the final command to power down.
And, it’s random… so even bisecting to find the kernel commit that caused this bug could take a month or two of constant testing, since the issue is random.
I knew that it wasn’t happening on another machine in the house, with a modern AMD BIOS. So I just bought a new AMD motherboard for the family member too, and got on with things… Sometimes that’s the best solution. 