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Thread: acpi wake up script fix

  1. #1
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    acpi wake up script fix

    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:
    Code:
    #!/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 $device > /proc/acpi/wakeup"
        fi
    done
    In: "cat /proc/acpi/wakeup" these are the XHC1 and LID0 items:
    Code:
    XHC1      S3    *disabled   pci:0000:00:14.0 
    LID0      S4    *disabled  platform:PNP0C0D:00
    I changed the script like this:
    Code:
    #!/bin/bash
    declare -a devices=("XHC1 LID0")
    for device in "${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:
    Code:
    grep: LID0.*disabled: File or folder does not exist
    When I change the code like this:
    Code:
    declare -a devices=("XHC1")
    so by removing 1 device, then the code works.

    Can someone help me solve this script problem?
    Last edited by ahbart; 2 Weeks Ago at 08:57 PM. Reason: post fixed

  2. #2
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    Re: acpi wake up script fix

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

  3. #3
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    Re: acpi wake up script fix

    Thread moved to the "Apple Hardware Users" forum.

  4. #4
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    Re: acpi wake up script fix

    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?
    Last edited by ahbart; 2 Weeks Ago at 07:10 PM.

  5. #5
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    Re: acpi wake up script fix

    Quote Originally Posted by ahbart View Post
    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.

  6. #6
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    Re: acpi wake up script fix

    " 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.

  7. #7
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    Re: acpi wake up script fix

    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.

  8. #8
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    Re: acpi wake up script fix

    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!

  9. #9
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    Re: acpi wake up script fix

    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.
    Please read The Forum Rules and The Forum Posting Guidelines

    A thing discovered and kept to oneself must be discovered time and again by others. A thing discovered and shared with others need be discovered only the once.
    This universe is crazy. I'm going back to my own.

  10. #10
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    Re: acpi wake up script fix

    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:
    Code:
    declare -a devices=( EHC1 EHC2 XHCI )

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