Mint 20.1 64Bits - Reboot when i shutdown

[hugomenezes]

Hi,
When i shutdown my desktop my computer reboot. How i can resolve this issue?

Regards

[Welcome]

Take a look at this thread viewtopic.php?f=46&t=338947.

There's many good suggestions in that thread. If you don't find a solution in that thread, return here and post your system information.

Please give us information about your install by entering this command in a terminal:

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inxi -Fxxxrz

Click </> from the mini toolbar above the textbox where you type your reply and then place your cursor between the code markers and paste the results of the command between the code markers [code]Results[/code]. This will let us know how Mint sees your hardware.

[hugomenezes]

[Welcome]

I had a computer from the 2004 era. I tried just about every suggestion to get it to shut down properly.

The only method that worked for me was to enter enter grub on the reboot, enter the command mode "c", and type in "halt" followed by return.

How to enter grub:
- Reboot.
- Press and hold the Shift (or Esc) key to show the boot menu.
- In the boot menu, press the letter 'c' to enter the command mode.
- Type 'halt' and press the Enter key.

The problem that a lot of people have is that they can't seem to get into grub.

I've read that the key to press depends on whether it is EFI or legacy boot.

-- Hold the shift key during boot to enter grub for non-EUFI/Legacy boot.
-- Hold the escape key during boot to enter grub when have EUFI boot.

You can make grub show automatically on every boot. This will make it easier to use the grub menu, but you'd see it each time the computer was booted. Maybe a good solution overall.

...
If you want to set grub to show automatically on every boot then run this command to open the relevant config file in a terminal based text editor with elevated privileges

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sudoedit /etc/default/grub

Change these lines

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GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=0

to

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GRUB_TIMEOUT_STYLE=menu
GRUB_TIMEOUT=5

Then Ctrl-X, Y, Enter to save.
Then in the terminal run

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sudo update-grub

Use this for now. If you find another solution, you can always skip grub or change the grub file back to it's original settings.

Enjoy!

[hugomenezes]

I find the problem, its a PCI WAKEUP

[Welcome]

Great! Problem solved!

[djk]

I had the same problem with a new NVidia card (GTX1050T1 4G). Changed drivers, disabled 'wake on LAN', cleared CMOS, etc. Problem persisted with booting a live USB flash drive and a DVD. Decided it was either a bad motherboard by coincidence, or the video card. Changing the video card was much easier than the motherboard. The old video card (NVidia 9800GT) worked flawlessly, but the new one, when put back in, had the same problem. Running Mint 20.1, Gigabyte mb B450Aorus, 16GB RAM with NVidia 340 drivers and kernel 5.4.0-62.