HP Elitebook 8560w sometimes freezes when it should suspend to RAM

[Arne Henningsen]

Sometimes when I want to suspend my HP Elitebook 8560w to RAM by pressing "fn + f3" or by clicking on "Sleep" in the KDE menu, the computer starts the suspension process but it does not turn off. Instead, a black screen with white letters is shown (I removed the numbers in square brackets before each line):

PM: Syncing filesystems ... done.
PM: Preparing system for mem sleep
Freezing user space processes ... (elapsed 0.001 seconds) done.
Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
PM: Entering mem sleep
Suspending console(s) (use no_console_suspend to debug)
_

The only thing on that the computer reacts is to press the power button for 3-5 seconds which turns the computer (completely) off so that it cannot resume but has to reboot. I have this computer since November 2011 and I had always the latest Kubuntu version installed. The bug never happened until and including Kubuntu 13.10. However, it occurs on average at every 5th to 10th suspend to RAM since I upgraded to Kubuntu 14.04.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-30-generic 3.13.0-30.54
ProcVersionSignature: Ubuntu 3.13.0-30.54-generic 3.13.11.2
Uname: Linux 3.13.0-30-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: arne 9200 F.... pulseaudio
 /dev/snd/controlC0: arne 9200 F.... pulseaudio
CurrentDesktop: KDE
Date: Thu Jul 3 23:12:25 2014
HibernationDevice: RESUME=UUID=08bb2f64-b80f-4404-85fe-4ff46032523a
InstallationDate: Installed on 2012-02-12 (872 days ago)
InstallationMedia: Kubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
MachineType: Hewlett-Packard HP EliteBook 8560w
ProcFB:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-30-generic root=UUID=02589bfc-045e-4404-a7fd-e12187b32039 ro quiet splash
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-30-generic N/A
 linux-backports-modules-3.13.0-30-generic N/A
 linux-firmware 1.127.4
SourcePackage: linux
UpgradeStatus: Upgraded to trusty on 2014-05-01 (63 days ago)
dmi.bios.date: 07/15/2013
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68SVD Ver. F.42
dmi.board.name: 1631
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 01.3D
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr68SVDVer.F.42:bd07/15/2013:svnHewlett-Packard:pnHPEliteBook8560w:pvrA0001D02:rvnHewlett-Packard:rn1631:rvrKBCVersion01.3D:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP EliteBook 8560w
dmi.product.version: A0001D02
dmi.sys.vendor: Hewlett-Packard

[Arne Henningsen (arne-henningsen-6)]

I have attached a photo of the "frozen" screen.

[Brad Figg (brad-figg)]

This change was made by a bot.

[Arne Henningsen (arne-henningsen-6)]

I have attached /var/log/kern.log. This file shows, e.g., that I *successfully* suspended my computer on July 3, 00:30 and resumed it on July 3, 07:13 but that I *unsuccessfully * suspended my computer on July 3, 20:08 and rebooted it on July 3, 22:13.

[Arne Henningsen (arne-henningsen-6)]

added file produced by the command "sudo dmidecode > dmidecode.txt"

[Arne Henningsen (arne-henningsen-6)]

attached file generated by the commands "cp -r /proc/acpi /tmp" and "tar -cvjf ~/acpi.tar.bz /tmp/acpi"

[penalvch (penalvch)]

Arne Henningsen, thank you for reporting this and helping make Ubuntu better. Could you please test the latest upstream kernel available from the very top line at the top of the page (not the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-3.16-rc3

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results. Thank you for your understanding.

[Arne Henningsen (arne-henningsen-6)]

The same problem occurred 2 times with following "upstream kernel":

uname -a

Linux arne-HP-EB-8560w 3.14.4-031404-generic #201405130853 SMP Tue May 13 12:54:33 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

[penalvch (penalvch)]

Arne Hennsingsen, could you please test the latest mainline kernel via http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.16-rc6-utopic/ and advise to the results?

[Arne Henningsen (arne-henningsen-6)]

OK, I'll do that.

[Arne Henningsen (arne-henningsen-6)]

I am using the mainline kernel for more than a month now and I have never experienced the bug :-) This means that the bug is very likely fixed in the mainline kernel :-)

uname -a
Linux arne-HP-EB-8560w 3.16.0-031600rc6-generic #201407210035 SMP Mon Jul 21 04:36:11 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

Please let me know if you need any further information from me.

[penalvch (penalvch)]

Arne Henningsen, the next step is to fully reverse commit bisect the kernel in order to identify the fix commit. Could you please do this following https://wiki.ubuntu.com/Kernel/KernelBisection#How_do_I_reverse_bisect_the_upstream_kernel.3F ?

[Arne Henningsen (arne-henningsen-6)]

I am using kernel 3.15.0 for more than a month now and I have never experienced the bug :-) This means that the bug has been very likely fixed between kernel 3.14.4 and kernel 3.15.0.

uname -a
Linux arne-HP-EB-8560w 3.15.0-031500-generic #201406131105 SMP Fri Jun 13 15:06:46 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

[Launchpad Janitor (janitor)]

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