Bug 1015883 - Can't shutdown Acer Aspire S7 392
Can't shutdown Acer Aspire S7 392
Status: CLOSED DUPLICATE of bug 1031331
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
x86_64 Linux
unspecified Severity medium
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Assigned To: Kernel Maintainer List
Fedora Extras Quality Assurance
Depends On:
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Reported: 2013-10-06 09:51 EDT by Josh Chia
Modified: 2013-12-26 20:29 EST (History)
9 users (show)

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Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2013-12-26 16:32:39 EST
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RHEL 7.3 requirements from Atomic Host:
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Description Josh Chia 2013-10-06 09:51:03 EDT
User-Agent:       Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.76 Safari/537.36
Build Identifier: 

If I try to shutdown, the shutdown sequence gets stuck at "reboot: Power down" but power-down doesn't actually happen.

Reproducible: Always

Steps to Reproduce:
1. Boot with kernel option "acpi_backlight=vendor". This is necessary or else the machine just gives a black screen (https://bugzilla.redhat.com/show_bug.cgi?id=1015881).
2. Login.
3. Try to shutdown from console with "sudo shutdown -h now".

Actual Results:  
Text shutdown sequence is shown, with final line "reboot: Power down", but no actual power-down.

Expected Results:  
Actual power-down.
Comment 1 Michele Baldessari 2013-11-17 14:04:06 EST
Can you try passing the various reboot= options and see if one of them work?
They are:

warm, cold, bios, smp, acpi, efi, pci, force, kbd, triple

I would start with acpi, efi, and pci as those are the most common working options.

What laptop is this?

Seems similar to:
Comment 2 Michele Baldessari 2013-12-25 13:22:24 EST
Hi Josh,

can you try kernel 3.12.6 which has the following commit:

commit 2ab0ff9b179aadf1f30f2dfa9db2b9404324e135
Author: Khalid Aziz <khalid.aziz@oracle.com>
Date:   Wed Nov 27 15:19:25 2013 -0700

    PCI: Disable Bus Master only on kexec reboot
    commit 4fc9bbf98fd66f879e628d8537ba7c240be2b58e upstream.

Some reports seem to indicate that Acer laptops are able to shutdown with that

You can find the kernel here:

Thanks and regards,
Comment 3 Michele Baldessari 2013-12-26 16:32:39 EST

*** This bug has been marked as a duplicate of bug 1031331 ***
Comment 4 Josh Chia 2013-12-26 20:29:58 EST
3.12.6 fixes the problem for me

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