Resume fails while on battery

[Attila Szász]

Symptoms
--------
Suspend seems to work.
Resume only works while not on battery.

This used to work before some recent kernel update.
However trying some of the older kernels now does not fix the problem: the symptoms are the same.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-45-generic 4.4.0-45.66
ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
Uname: Linux 4.4.0-45-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/pcmC0D0p: tilushq 1984 F...m pulseaudio
 /dev/snd/controlC0: tilushq 1984 F.... pulseaudio
CurrentDesktop: Unity
Date: Mon Oct 31 22:03:18 2016
HibernationDevice: RESUME=UUID=1bb24b5a-791d-4b20-aa2c-7d94a422dc6b
InstallationDate: Installed on 2016-03-21 (223 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 003: ID 064e:9700 Suyin Corp. Asus Integrated Webcam
 Bus 001 Device 002: ID 062a:4101 Creative Labs Wireless Keyboard/Mouse
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: ASUSTeK COMPUTER INC. UX303UA
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz root=UUID=33644c26-0732-468b-adcf-5b6d1da3df86 ro quiet splash acpi_osi= vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-4.4.0-45-generic N/A
 linux-backports-modules-4.4.0-45-generic N/A
 linux-firmware 1.157.4
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/27/2015
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: UX303UA.202
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: UX303UA
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: ATN12345678901234567
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX303UA.202:bd08/27/2015:svnASUSTeKCOMPUTERINC.:pnUX303UA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX303UA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.name: UX303UA
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream stable kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.4 stable 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'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-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/v4.4.30

[Joseph Salisbury (jsalisbury)]

Also, does this issue go away if you boot back into the previous kernel version?

[Attila Szász (tilusnet)]

Hi Joseph,

Thanks for writing back.
I did try with switching between upstream 4.8.0 and 4.8.6 and back, neither fixed it.
However once I booted into my old 3.19 kernel the symptom went away.I may also add that the laptop had been shut down beforehand for a good number of hours (not plugged in).

Any explanation for that?

[Attila Szász (tilusnet)]

Hi again,

Not sure how related, but when I plug in a HDMI device the system hangs if and only if I'm on battery.

[Attila Szász (tilusnet)]

Update:

I noticed that after the system hangs (e.g. plugging in a HDMI device while on battery), upon subsequent restarts the system fails to resume on battery, no matter what kernel I load.

Once I fully shutdown and cold start, resume starts to work.
As if it has to do with some internal state loaded on warm boot?

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]