Does anyone how how I can diagnose and fix this problem:
Sometimes, but not always, when shutting down the process does not actually complete and the computer does not turn off.
The screen turns off but the keyboard backlight is still responsive, the fan is still going and the power-on LED is lit. Because the screen is turned off I can’t interact graphically with the computer and have to just hold down the power button and do a hard reboot.
I haven’t tested it properly but I get the feeling it happens more often if I have been doing audio work.
Debian 13 GNOME 48 Intel Core Ultra 7 Laptop
Pro ably some ACPI issues. Have you changed BIOS settings or anything else recently? Did it previously work fine?
Acpi is my guess too. Unfortunately that is sometimes an issue and difficult to correct
Not recently. When the laptop was new I had Fedora on it which was worse. Then I switched to Debian when Trixie came out and it’s been much better but still happens occasionally. Over time I have tried different settings in Coreboot though - perhaps I should reset everything there to defaults.
What’s the model of the laptop?
Star Labs Starbook mk7, ‘made for linux’, pas moins.
Have you updated the firmware recently? https://us.starlabs.systems/blogs/news/firmware-update-announcement-25-05
They’ve fixed a lot of ACPI and power issues with various models, including the mk7: https://github.com/StarLabsLtd/firmware/issues/139
Yes, I’ve updated to 25.06 which I think is the latest version. I was also having some issues with waking from suspend but they are fixed now I can manage the lid switch in Coreboot.
Try running
sudo shutdown -h nowand see if it still does the same thing.If so, try forcing ACPI actions like so and see what happens: https://askubuntu.com/questions/125844/shutdown-does-not-power-off-computer#127022
I know this an ACPI tables issue, but there’s a wide variety of debug steps to figure out which one.