Ubuntu with KDE5 freezes every few hours

[Tommy_CZ]

Ubuntu with KDE5 freezes every few hours on my Lenovo computer. I will investigate and write here more.

Seems to be unrelated to video drivers, newer from ppa did not help.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-34-generic 4.4.0-34.53
ProcVersionSignature: Ubuntu 4.4.0-34.53-generic 4.4.15
Uname: Linux 4.4.0-34-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: januli 2594 F.... pulseaudio
 /dev/snd/controlC0: januli 2594 F.... pulseaudio
CurrentDesktop: KDE
Date: Wed Aug 17 23:29:42 2016
HibernationDevice: RESUME=UUID=c87f3c40-c0a2-4e47-bf08-abc00d058aa0
InstallationDate: Installed on 2015-09-18 (334 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
MachineType: LENOVO 90BJ0054CK
ProcEnviron:
 LANGUAGE=cs
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=cs_CZ.UTF-8
 SHELL=/bin/bash
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-34-generic.efi.signed root=UUID=6b62fe74-a5ab-4a47-a1e3-e99ca0c4de3d ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-4.4.0-34-generic N/A
 linux-backports-modules-4.4.0-34-generic N/A
 linux-firmware 1.157.3
SourcePackage: linux
UpgradeStatus: Upgraded to xenial on 2016-04-30 (109 days ago)
dmi.bios.date: 03/26/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: O06KT18AUS
dmi.board.vendor: LENOVO
dmi.board.version: 31900058 STD
dmi.chassis.type: 3
dmi.chassis.vendor: LENOVO
dmi.modalias: dmi:bvnLENOVO:bvrO06KT18AUS:bd03/26/2015:svnLENOVO:pn90BJ0054CK:pvrLenovoH30-05:rvnLENOVO:rn:rvr31900058STD:cvnLENOVO:ct3:cvr:
dmi.product.name: 90BJ0054CK
dmi.product.version: Lenovo H30-05
dmi.sys.vendor: LENOVO

[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 prior kernel version where you were not having this particular problem?

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-rc2/

[Launchpad Janitor (janitor)]

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