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Message #04977
[Bug 1592923] Re: Display artificats when using external display with Ubuntu 16.04 on Lenovo X1 Carbon (Broadwell)
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/v4.4.13-xenial/
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
** Also affects: linux (Ubuntu Xenial)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Xenial)
Status: New => Confirmed
** Changed in: linux (Ubuntu Xenial)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
** Changed in: linux (Ubuntu Xenial)
Status: Confirmed => Incomplete
--
You received this bug notification because you are a member of नेपाली
भाषा समायोजकहरुको समूह, which is subscribed to Xenial.
Matching subscriptions: Ubuntu 16.04 Bugs
https://bugs.launchpad.net/bugs/1592923
Title:
Display artificats when using external display with Ubuntu 16.04 on
Lenovo X1 Carbon (Broadwell)
Status in linux package in Ubuntu:
Incomplete
Status in linux source package in Xenial:
Incomplete
Bug description:
After upgrading this laptop from 14.04 (LTS-Wily X & Kernel stack) to
16.04, I am no longer able to usefully use external displays. There
are artifacts on both displays that get worse with mouse movement.
Upgrading to a 4.7rc3 mainline kernel from the Ubuntu kernel PPA fixed
the problem.
(I'm using the mini-DP port on the laptop and have tried several
different converters and monitors.)
---
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: helen 2118 F.... pulseaudio
/dev/snd/controlC0: helen 2118 F.... pulseaudio
CurrentDesktop: Unity
DistroRelease: Ubuntu 16.04
EcryptfsInUse: Yes
InstallationDate: Installed on 2016-04-22 (54 days ago)
InstallationMedia: Ubuntu 14.04.4 LTS "Trusty Tahr" - Release amd64 (20160217.1)
MachineType: LENOVO 20BS0061ZA
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-25-generic.efi.signed root=UUID=fc75b093-6f8c-4b7e-946c-71df6814ab6a ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 4.4.0-25.44-generic 4.4.13
RelatedPackageVersions:
linux-restricted-modules-4.4.0-25-generic N/A
linux-backports-modules-4.4.0-25-generic N/A
linux-firmware 1.157
Tags: xenial
Uname: Linux 4.4.0-25-generic x86_64
UpgradeStatus: Upgraded to xenial on 2016-06-14 (1 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 08/13/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: N14ET32W (1.10 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20BS0061ZA
dmi.board.vendor: LENOVO
dmi.board.version: SDK0E50510 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrN14ET32W(1.10):bd08/13/2015:svnLENOVO:pn20BS0061ZA:pvrThinkPadX1Carbon3rd:rvnLENOVO:rn20BS0061ZA:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.name: 20BS0061ZA
dmi.product.version: ThinkPad X1 Carbon 3rd
dmi.sys.vendor: LENOVO
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