[SOLVED] unwanted systemstart when opening lid

[Matumi]

Hey!

I was surprised that after installing Mint 20.1 it does not seem to offer hibernation as an option.
However, with some help I managed to get hibernation working.

My Problem: When I put my notebook to hibernation it always automatically starts the system again when opening the lid. Even if the lid is just moved the tiniest bit, the system starts.

I don't want that. I don't find it useful and it can easily happen accidentally when transporting the notebook - and then it discharges the battery for no reason.

In the energy settings I found an easy way to tell the system, not to do anything when the lid is closed. But there seems to be no way to tell the system, not to do anything when it is opened.

Does anyone know a way?

[t42]

You can find the wakeup device with acpitool
sudo apt install acpitool

This will show wakeup capable devices:

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acpitool -w

This will toggle wakeup capable device x (note capital W) :

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sudo acpitool -W x

example:

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acpitool -w
   Device	S-state	  Status   Sysfs node
  ---------------------------------------
 1. SBAZ	  S4	*disabled  pci:0000:00:14.2
------
17. LID	  S3	*enabled   platform:PNP0C0D:00

sudo acpitool -W 17
 Changed status for wakeup device #17 (LID)

After each reboot you need to repeat sudo acpitool -W x command or to implement boot script or service.

[Matumi]

Wow, that works so far! Very cool! Thanks a lot!

If I understand you right, there is a way to make this permanent!?

How does it work to implement a boot script or service?

[t42]

Hot to create a service
Create a text file usb-wakeup.service here: /etc/systemd/system/usb-wakeup.service
example:

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[Unit]
Description=Disable wakeup events

[Service]
ExecStart=/bin/bash -c "echo UHC7 >> /proc/acpi/wakeup"
Type=oneshot

[Install]
WantedBy=multi-user.target

Change expressions inside double-quotes (here it is UHC7) to what is needed and save the file.
Then execute terminal commands

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sudo systemctl enable usb-wakeup.service
sudo systemctl start usb-wakeup.service

reboot

[Matumi]

Change expressions inside double-quotes (here it is UHC7) to what is needed and save the file.

I feel a bit stupid asking this question, but how do I know what is needed?
I have no idea what is supposed to be written there in my case. Where can I find out?

[t42]

Where can I find out?

Here:

Wow, that works so far!

If you have the working command sudo acpitool -W [number] use the device name for that number from acpitool -w command and insert it in this expression "echo [devcie name here] >> /proc/acpi/wakeup"

[Matumi]

Aah!! So I knew more than I thought!

The command acpitool -w shows me the following information:

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  Device	S-state	  Status   Sysfs node
  ---------------------------------------
  1. LID	  S4	*disabled  platform:PNP0C0D:00
  2. SLPB	  S3	*enabled   platform:PNP0C0E:00
  3. IGBE	  S4	*enabled   pci:0000:00:19.0
  4. EXP2	  S4	*enabled   pci:0000:00:1c.1
  5. XHCI	  S3	*enabled   pci:0000:00:14.0
  6. EHC1	  S3	*enabled   pci:0000:00:1d.0

So the device name would judt be LID in my case - right?

[t42]

It's right.

[Matumi]

I did all that. The effect is indeed that the system does not start when I open the lid.

For some reason now hibernation does not work properly. It is still offered as an option, but it seems to have the same effect as shutting down.

[Matumi]

This might not be connected at all.
I am also having issues with the mint grub. At the moment only the mx grub is working.

[t42]

For some reason now hibernation does not work properly. It is still offered as an option, but it seems to have the same effect as shutting down.

Are you using the Power button to wake up from hibernation?
Before analyzing other things, make sure the size of a swap file is sufficient. Check it through System Monitor -> Resources or by the swapon --show command.

However, with some help I managed to get hibernation working.

It seems you are back to square one

[Matumi]

Hibernation not working any more was indeed unconnected to creating a service for the lid issue.

I repaired the mint grub and now hibernation works again and all the things connected to opening the lid are exactly the way I wanted them:
I can go to hibernation by choosing it in the menu or by closing the lid. When I open the lid nothing happens. When I press the button the computer wakes up.

So thanks a lot for all the advice!!
(So relieving when things finally just work!)