acpi wake up script fix

[ahbart]

I've Ubuntu 20.10 running on a laptop.
It is running very well, but I still have a small issue with power management. When I close the lid, the laptop suspends. But when I open it, it does not wake up.
I want to echo LID0 and XHC1 to /proc/acpi/wakeup when one or both of them are disabled.

I've found a script, that was working wel for others. This is the original script:

#!/bin/bash

declare -a devices=("EHC1 EHC2 XHCI") # <-- Add your entries here
for device in "${devices[@]}"; do
    if grep -qw ^$device.*enabled /proc/acpi/wakeup; then
        sudo sh -c "echo $device > /proc/acpi/wakeup"
    fi
done

In: "cat /proc/acpi/wakeup" these are the XHC1 and LID0 items:

XHC1      S3    *disabled   pci:0000:00:14.0 
LID0      S4    *disabled  platform:PNP0C0D:00

I changed the script like this:

#!/bin/bash
declare -a devices=("XHC1 LID0")
for device in "${devices[@]}"; do
    if grep -qw ^$device.*disabled /proc/acpi/wakeup; then
        sudo sh -c "echo $device > /proc/acpi/wakeup"
    fi
done

But than I get this error:

grep: LID0.*disabled: File or folder does not exist

When I change the code like this:

declare -a devices=("XHC1")

so by removing 1 device, then the code works.

Can someone help me solve this script problem?

[ahbart]

No one with a little bash script knowledge who can help me?

[howefield]

Thread moved to the "Apple Hardware Users" forum.

[ahbart]

" Apple hardware often has specific characteristics" . I agree to that. But this is related to the way how LID0 and XHC1 can be set to enabled via a bash script. See above.
So I do not agree.

[ahbart]

This is not apple related, nor apple hardware related. This is power management, acpi, laptop related. So I do not understand why this is moved to the apple hardware forum?! I shoud not have mentioned that This is on an Macbook.
I'm lokking for an bash script solution related to acpi. Can someone place it back please to Hardware?

[CelticWarrior]

This is not apple related, nor apple hardware related. This is powermanagement, acpi, laptop related. So I do not understand why this is moved to the apple hardware forum?!

Quoting from the OP:

It runs on a macbook pro mid 2012

Apple hardware often has specific characteristics. They're anything but "generic" laptops, so it makes sense to be moved to this section. Either way it'll probably remain as it is.

[CelticWarrior]

Not agreeing is your prerogative, of course. Will it change the mods minds? Probably not. Being in any other section improves the chances to have a reply? Very likely not.

[ahbart]

I have a bash script problem. Nothing to do with this specific Apple hardware.
The exposure in this threat is much smaller then in Hardware. I'm totally not happy with this!

[QIII]

The exposure in this sub-forum is exactly the same as in any other. It is no less visible here than in any other thread. It is not hidden or obscured.

But it might more likely catch the eye of someone with similar hardware.

[ahbart]

I totally disagree with you moderators in this! My post was and is about bash scripting. The fact that Ubuntu is running on a macbook is totally irrelevant here. Maybe I should not have mentioned that in the first place.
In my opinion it is just rude or even arrogant to not even listen to my arguments to leave it under the hardware topics.
On another forum I've got an answer to my bash scripting question. I have to leave out the quotes from the declare line like this:

declare -a devices=( EHC1 EHC2 XHCI )