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so I did software updates yesterday (the software updater popped up and I followed to instructions) and went on to watch a movie. Then I used to GUI to press "Power Off", closed it and went to sleep. Just now I realised that it was on the entire night, but the screen was black. It wasn't reacting to any key-stroke or clicking on the mousepad-thingie, so I kept pressing the power button to force shut it off.

I thought it is a onetime-thing, but I went to investigate. Neither "Power Off" or "Restart" work properly. The screen goes black, but the keyboard LEDs aswell as the power-LED are still lit and the fan turns up sometimes.

Some Info:

Ubuntu Version 18.04.4 LTS

Dual-Boot with Windows 10

ThinkPad E495 (maybe 4 months old)

Things I've tried:

Using the command prompt to shutdown now aswell as init 0 , reboot -p and sudo systemctl poweroff -> No changes

Using the command prompt to sudo update-grub -> No changes

Pressing e in the bootup menu in grub to change linux /boot/vmlinux/something-something ... quiet splash and add acpi=force -> No changes

Help would be much appreciated.

Doppelgott
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1 Answers1

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Read This Ubuntu 18.04 stuck at shutdown:

Same problem here on my laptop. After some observation, I found out that it has something to do with power saving mode specially automatic suspend.

Go to Settings > Power then turn off all Automatic Suspend options. Also choose Blank screen to Never.

Till Ubuntu team will figure out why suspend mode is interfering with shutdown process, this solved my problem.

Hope this helps

This post also mention about Display Drivers related solution. Check if it matches with yours.

Ajay
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