Cannot power down system

[Brian Knutsson]

I cannot do a shutdown of the system. It never turns off my computer.

If I track the shutdown process, it ends with:
System: Power down

And then nothing happends except for the internal fans normally speeds up, but it does not turn off the PC.

I can do a reboot without problems.

I tried the dev kernel version 4.8.0 (amd64) but it did not solve the issue.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-31-generic 4.4.0-31.50
ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
Uname: Linux 4.4.0-31-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: bfk 5288 F.... pulseaudio
 /dev/snd/controlC1: bfk 5288 F.... pulseaudio
CurrentDesktop: Unity
Date: Mon Aug 15 14:22:07 2016
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=1d553aaa-5506-4fdd-b6e4-2da0c11fb7f8
InstallationDate: Installed on 2016-03-10 (157 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
MachineType: Apple Inc. MacBookPro11,5
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-31-generic.efi.signed root=UUID=980d5758-068c-4c32-8f18-ac0d9c15855b ro quiet splash acpi=force vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-4.4.0-31-generic N/A
 linux-backports-modules-4.4.0-31-generic N/A
 linux-firmware 1.157.3
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/02/2015
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP114.88Z.0172.B06.1509021656
dmi.board.name: Mac-06F11F11946D27C5
dmi.board.vendor: Apple Inc.
dmi.board.version: MacBookPro11,5
dmi.chassis.type: 9
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-06F11F11946D27C5
dmi.modalias: dmi:bvnAppleInc.:bvrMBP114.88Z.0172.B06.1509021656:bd09/02/2015:svnAppleInc.:pnMacBookPro11,5:pvr1.0:rvnAppleInc.:rnMac-06F11F11946D27C5:rvrMacBookPro11,5:cvnAppleInc.:ct9:cvrMac-06F11F11946D27C5:
dmi.product.name: MacBookPro11,5
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Did this issue start happening after an update/upgrade? Was there a kernel version where you were not having this particular problem? This will help determine if the problem you are seeing is the result of a regression, and when this regression was introduced. If this is a regression, we can perform a kernel bisect to identify the commit that introduced the problem.

[Brian Knutsson (maps-t)]

I installed this Laptop with Ubuntu 16.04 right about when it was released, and it has been patches regularly, and it has never been able to shutdown, hibernate or standby.

I have not had any former version of Ubuntu installed on it.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.8 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.8-rc3

[Brian Knutsson (maps-t)]

I tried the 4.8.0 rc5 kernel.

I had to use recovery mode to get it to boot. I was able to resume every step to get it running, but I could not boot automatically.

The shutdown function still did not work.

kernel-bug-exists-upstream

[penalvch (penalvch)]

Brian Knutsson, could you please provide a log of the shutdown following https://wiki.ubuntu.com/DebuggingSystemCrash ?

[Brian Knutsson (maps-t)]

Hi Christopher,

Thanks for taking the time. What log exactly do you want?

Best Regards
Brian

[Brian Knutsson (maps-t)]

I just started working for the first time ever.

Not sure if it is a kernel upgrade that did the trick, but it is now running the following kernel:
Linux hostname 4.4.0-38-generic #57-Ubuntu SMP Tue Sep 6 15:42:33 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

Suspend works, and shutdown works! :)

[Brian Knutsson (maps-t)]

Hibernate still does not work. It will not come back from hibernate.

[penalvch (penalvch)]

Brian Knutsson, hibernate is a different issue, for a different report. Please file a new one if you would like it addressed.

Despite this, this bug report is being closed due to your last comment https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1613270/comments/9 regarding this being fixed with an update. For future reference you can manage the status of your own bugs by clicking on the current status in the yellow line and then choosing a new status in the revealed drop down box. You can learn more about bug statuses at https://wiki.ubuntu.com/Bugs/Status. Thank you again for taking the time to report this bug and helping to make Ubuntu better. Please submit any future bugs you may find.

[Brian Knutsson (maps-t)]

Thank you for all your help.

[penalvch (penalvch)]

Brian Knutsson, not Fix Released as defined in https://wiki.ubuntu.com/Bugs/Bug%20statuses . Please do not adjust.

[Brian Knutsson (maps-t)]

Well something was fixed. I have had this laptop for 6 months, and it NEVER worked, so someone did something.