regular system freeze - 16.04

[TazX]

Seems this is common enough to have a few requests on Ask Ubuntu:
http://askubuntu.com/search?q=16.04+freeze

I would update my kernel, as suggested, however there are not clear instructions and I have had issues doing kernel upgrades in the past. The freezes are not Chrome only, as they also occur when Chrome is not running, though, from memory, Steam uses some of the same things as Chrome. Once the freeze happens a hard reset (holding down the power button) and restarting is the only solution (I can't even open a CLI instance).

Thanks for your time, hope there is a fix soon. Best regards,

Taz

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-21-generic 4.4.0-21.37 [modified: boot/vmlinuz-4.4.0-21-generic]
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: tamsyn 1886 F.... pulseaudio
CurrentDesktop: Unity
Date: Fri May 6 16:45:25 2016
HibernationDevice: RESUME=UUID=318736d3-a7a7-4b0e-8e64-6cce65e801ad
InstallationDate: Installed on 2016-04-22 (13 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
MachineType: Acer Aspire E5-511
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-21-generic.efi.signed root=UUID=35b282c1-4348-4d7a-90db-fef77f539874 ro noprompt persistent quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-4.4.0-21-generic N/A
 linux-backports-modules-4.4.0-21-generic N/A
 linux-firmware 1.157
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/16/2014
dmi.bios.vendor: Acer
dmi.bios.version: V1.03
dmi.board.name: Aspire E5-511
dmi.board.vendor: Acer
dmi.board.version: V1.03
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAcer:bvrV1.03:bd05/16/2014:svnAcer:pnAspireE5-511:pvrV1.03:rvnAcer:rnAspireE5-511:rvrV1.03:cvnAcer:ct10:cvrChassisVersion:
dmi.product.name: Aspire E5-511
dmi.product.version: V1.03
dmi.sys.vendor: Acer

[Brad Figg (brad-figg)]

This change was made by a bot.

[TazX (taz-x)]

Hi, I just upgraded the kernel using the instructions here:
https://wiki.ubuntu.com/Kernel/MainlineBuilds
Now I'm running 4.4.9-040409-generic (according to uname -r).
Since that seems to be your suggestion for other users with this same issue. Let me know if you want me to do something else. I've only been running it for a few minutes, I'll let you know if/when it freezes too.

I now have and issue where grub no longer shows, and I boot straight into this kernel, so I hope this one works. :)

[TazX (taz-x)]

It froze after about half an hour, in exactly the same way as before. If you have something you would like me to run to give you more information please let me know. Thanks!

[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 v4.6 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/v4.6-rc6-wily/

[TazX (taz-x)]

The update appears to have worked, however I no longer have a working wifi card, which is unfortunate. When I go to modprobe wl it says there is no wl in the kernel. Is that because I accidentally installed the 'low latency' version? Should I uninstal that?

[TazX (taz-x)]

Never mind, I fixed the issue (unselected the broadcom driver in 'additional drivers' and re-added it). Heh, thank-you. So far I haven't had any freezing. I'll use the laptop more tomorrow, and let you know.

[penalvch (penalvch)]

TazX, has the computer remained without freezes with the upstream kernel?

[Launchpad Janitor (janitor)]

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

[mickEDK (mickedk)]

Suffered from this bug for 3 months. Tried more than 12 solutions suggested by WWW. Given up and downgraded to Ubuntu 14.04 last week. No recurrence at all.

[penalvch (penalvch)]

mickEDK, it will help immensely if you filed a new report with Ubuntu, using the default repository kernel (not mainline/upstream/3rd party) via a terminal:
ubuntu-bug linux

Please feel free to subscribe me to it.

For more on why this is helpful, please see https://wiki.ubuntu.com/ReportingBugs.

[Glenn Fletcher (w6-glenn-hz)]

had this prob with 16.04 since day one
been with linux since win98 fiasco now ready to go back to win 10
this freezing is a bloody disaster as it freezes with ram at 100% also
has the win98 dev team migrated to ubuntu 16.04
for gods sake release ubuntu 18