I don’t know if something was enabled or disabled during a kernel update, but I can’t completely shut down the computer.
I installed Windows with another drive (yes, I know it’s sacrilege) and tested it. The command to restart and shut down works without problems. I’ve tried with Manjaro, Cachy, Fedora, Mint, U/Kbuntu… but it shuts down in Linux.
Honestly, I don’t know what to do. I’ve tried poweroff -f and other combinations, but I can’t find a way to shut it down. It freezes. Only the CPU and CPU cooler fans (12 cm) keep running.
Windows uses Hybrid Boot, so if you shut down Windows, and then turn back on and boot into Linux, Windows is holding your hardware resources hostage. You will see screwy things running both, even on separate drives.
Some hardware information would be useful, and look in your UEFI settings for ErP power management. Other than that, ensure you’re running the latest kernel.
uname -a
Linux 2689-V2 6.19.6-arch1-1 #1 SMP PREEMPT_DYNAMIC Wed, 04 Mar 2026 18:25:08 +0000 x86_64 GNU/Linux
[miguel@2689-V2 ~]$
And could you tell me what information you need from my configuration or setup? By the way, should I uninstall Windows now?
Thanks.
:PD I know there are commands in Inxi, but I don’t know which ones are the right ones to show all the information.
There is also a bug in Winblows 11, that has a patch released now, in which the PC does not shutdown and/or it shuts down and then randomly restarts, usually within 30 seconds to a minute but we’ve had laptops wake up while users were sleeping that were NOT plugged in and the battery was dead in the morning. All of our PC/Laptops are work are affected by this but we only use Lenovo and Dell products so it might be contained to OEM stuff I am not sure as I do not use windows at home and those that do always reboot and rarely shutdown
Our enterprise just started to roll out the fix from MS on Friday.
Also, the default Windows 11 sleep/hibernation settings may be rather aggressive after a recent update.
Check them and make sure the PC is not ALWAYS going into sleep/then hibernation when you shut it down.
Use the control panel-power options applet as the settings you’re looking for will be in there and using the setting app is useless for this until MS moves them to the settings app.
As far as Windows “holding or locking” resources AFTER a reboot into another OS?
I’d need proof of that as logically, I do not see how it would be done. Unless you are saying that Windows 11 integrates itself SO deeply into the hardware that it holds/locks resources by manipulating the UEFI? I don’t see how that is possible but I am a technician NOT an engineer so PLEASE explain further if this is somehow possible?
For Windows 11 in an admin prompt try doing:save everything before doing this as it will immediately shutdown hard with no save this or that prompts–you’ll lose it if you don’t save it first.
shutdown /s /t 0
If that works then leave it off for an hour and see if it just randomly starts up again.
Windows is a spy and a thief though.
Why anyone would infect their hardware with it is completely beyond me and I used and fixed it for +35 years
Put another Linux on that secondary hard drive and use it for a backup OS in case you EndeavourOS gets pooched temporarily.
I run cachy OS but am thinking about spreading out to another distro instead of 2 Arch based distro’s.
Anyhoo - I hope this gets worked out fast for you.
Thanks for the replies, but as far as I can see, I’ve only installed Windows 10. I wouldn’t touch Windows 11 for anything. Like I said, the computer hasn’t been touched since yesterday, and… there’s no way to turn it off, and I don’t want to mess with or rewrite anything in the BIOS since I’ve checked all the settings and they’re fine.
I don’t know, this is the work of the devil or something weird, or maybe my brother “tried” to install Windows 11…
Thanks, nothing obvious there, if you’re not willing to make any changes there’s not a huge amount more I can suggest. But can you output via sudo
Inxi -Maz
Which will give you the firmware specs of your motherboard and potentially any power savings options. You would need to check ErP is set to S5 for deep sleep, or disable to disable suspend or to fully shut down. Your motherboard manual will give you the full specs and settings.
I know that “sleep” or “suspend” mode doesn’t work on this motherboard, but the shutdown function does. In fact, it’s always worked since I bought it, both on Endeavour and other operating systems.
Okay, fair enough, - you have a couple of choices.
Find someone locally who is technical to support you. 2. At the very least, see if there’s a more recent update for your UEFI, which is from July of 2019. If you run that command as sudo, it will give you the model which you can search on to pick the motherboard’s download page.
