Frank, it's always best for security and bug fixes to keep the BIOS
current, as an outdated BIOS can cause various OS related issues, and
exposes your computer to security vulnerabilities. For help on updating,
please see https://help.ubuntu.com/community/BIOSUpdate .
Once it is updated, please provide the output of the following terminal command
(not perform an apport-collect):
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/1651830
Title:
Intel HD Graphics 520 lagging after kernel upgrade
Status in linux package in Ubuntu:
Incomplete
Bug description:
After upgrading to kernel version 4.4.0-53 on a clean install of
Lubuntu, I have experienced a persistent problem where the desktop
graphics (or any graphics when not using tty 1 to 6) appear to lag or
freeze every 1 to 2 seconds for between 0.5 to 1 second. During the
freezes, no mouse input is recorded, and most keyboard input is lost.
I'm fairly sure this is a kernel issue, as booting with kernel
4.4.0-31 fixes the issue. This problem is also present in 4.4.0-57.
I am using a Lenovo ThinkPad X1 Carbon with integrated Intel graphics,
which aren't the most powerful (they couldn't handle Unity, hence
Lubunut). I am running Lubuntu 16.04 LTS, though I have tried a clean
install (from the .iso) of Lubuntu 16.10, and this but still appears.
The laptop has a4 core i5-6200U processor (2.3 GHz), 8 Gigs of RAM,
and Intel HD Graphics 520 (Skylake)
This does not appear to be a thermal issue, or a processor speed issue
(the problem persists weather speed step is enabled in the bios or
not), though my testing with processor speed step and kernel
performance settings (performance/power save) was at best amateur.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-57-generic 4.4.0-57.78
ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35
Uname: Linux 4.4.0-57-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.4
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: david 1078 F.... pulseaudio
CurrentDesktop: LXDE
Date: Wed Dec 21 18:21:04 2016
HibernationDevice: RESUME=UUID=046bb03a-34db-4896-b109-e950967a9fae
InstallationDate: Installed on 2016-12-14 (7 days ago)
InstallationMedia: Lubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64
(20160720)
MachineType: LENOVO 20FBCTO1WW
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-57-generic.efi.signed
root=UUID=f802d856-3841-4231-8eb4-80def322e540 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-4.4.0-57-generic N/A
linux-backports-modules-4.4.0-57-generic N/A
linux-firmware 1.157.6
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/02/2016
dmi.bios.vendor: LENOVO
dmi.bios.version: N1FET43W (1.17 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20FBCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40709 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias:
dmi:bvnLENOVO:bvrN1FET43W(1.17):bd08/02/2016:svnLENOVO:pn20FBCTO1WW:pvrThinkPadX1Carbon4th:rvnLENOVO:rn20FBCTO1WW:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.name: 20FBCTO1WW
dmi.product.version: ThinkPad X1 Carbon 4th
dmi.sys.vendor: LENOVO
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