I reverted the suspicious commit
commit 2103fba9710ece54a38b2ae16359d59e904521b5 (HEAD -> refs/heads/master)
Author: AceLan Kao <acelan....@canonical.com>
Date: Mon May 28 23:09:37 2018 -0400
Revert "drm/i915/edp: Do not do link training fallback or prune modes on
EDP"
This reverts commit 116b5d52ac58a123903bfbb876c8024cfcd7b745.
And here is the test kernel, please try and check if it helps, and please make
sure you boot the machine with the correct kernel, this is unsigned version.
Thanks.
http://people.canonical.com/~acelan/bugs/lp1773581/
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https://bugs.launchpad.net/bugs/1773581
Title:
[Samsung NP900X3G-S01US] Horizontal lines after update to 4.13.0-43
Status in linux package in Ubuntu:
Incomplete
Bug description:
After updating my Ubuntu 16.04 kernel from 4.13.0-41 to 4.13.0-43, I
am seeing horizontal lines on the display. Rebooting into -41 makes
them disappear. This is most likely the same problem as seen in 18.04
by another user:
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1771204 (also see
the attached photo there)
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.13.0-43-generic 4.13.0-43.48~16.04.1
ProcVersionSignature: Ubuntu 4.13.0-43.48~16.04.1-generic 4.13.16
Uname: Linux 4.13.0-43-generic x86_64
NonfreeKernelModules: openafs
ApportVersion: 2.20.1-0ubuntu2.17
Architecture: amd64
CurrentDesktop: Unity
Date: Sat May 26 22:56:48 2018
InstallationDate: Installed on 2014-05-19 (1468 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
SourcePackage: linux-hwe
UpgradeStatus: No upgrade log present (probably fresh install)
---
ApportVersion: 2.20.1-0ubuntu2.17
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: fwinkl 2305 F.... pulseaudio
/dev/snd/controlC1: fwinkl 2305 F.... pulseaudio
DistroRelease: Ubuntu 16.04
HibernationDevice: RESUME=UUID=00a4b15e-a4f1-4b35-9c8a-5ea33b1c6762
InstallationDate: Installed on 2014-05-19 (1468 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
MachineType: SAMSUNG ELECTRONICS CO., LTD. 900X3G
NonfreeKernelModules: openafs
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-43-generic
root=UUID=ed5ec6cc-07cf-4e98-8b4e-efa0ba2d07a9 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 4.13.0-43.48~16.04.1-generic 4.13.16
PulseList:
Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not
accessible: Permission denied
No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-4.13.0-43-generic N/A
linux-backports-modules-4.13.0-43-generic N/A
linux-firmware 1.157.18
Tags: xenial
Uname: Linux 4.13.0-43-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
_MarkForUpload: True
dmi.bios.date: 10/31/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P07ADU.029.141031.PS
dmi.board.asset.tag: No Asset Tag
dmi.board.name: NP900X3G-S01US
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: SAMSUNG_SW_REVISION_1234567890ABCD
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrP07ADU.029.141031.PS:bd10/31/2014:svnSAMSUNGELECTRONICSCO.,LTD.:pn900X3G:pvrP07ADU:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP900X3G-S01US:rvrSAMSUNG_SW_REVISION_1234567890ABCD:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A:
dmi.product.family: SAMSUNG SENS
dmi.product.name: 900X3G
dmi.product.version: P07ADU
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
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