kernel-packages team mailing list archive

[tehownt <1265544@xxxxxxxxxxxxxxxxxx>]

>You might be able to WORKAROUND the dimming+freeze issue by disabling
screen dim in System Settings (which may have it's own systemd
WORKAROUND to get these to take). I'll let you comment further to this.

Yes, this was the easiest workaround but it forbids screen going down.
So issue is persistent for that.

>If you patch the default Ubuntu kernel with out of tree branches,
especially an experimental testing ground like drm-intel-next, it's not
supported. For more on this, please see
https://wiki.ubuntu.com/Kernel/MainlineBuilds#Kernel.2BAC8-FAQ.2BAC8-DebuggingMainlineBuildsSupport.Does_the_kernel_team_support_the_mainline_kernel_builds.3F
.

I get this, I just wanted to mention it. Once the "fix" from drm-intel-
next eventually gets backported, this could be looked upon.

>Also, did this issue not occur for you personally in a release prior to
Trusty?

Brand new laptop, installed Trusty directly on it. Tried Saucy but had
the same issue so went back to Trusty dev build.

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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1265544

Title:
  8086:0a16 [UX302LG] black screen on boot 3.12.0-7

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Same description/workaround as
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1263015

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.12.0-7-generic 3.12.0-7.15
  ProcVersionSignature: Ubuntu 3.12.0-7.15-generic 3.12.4
  Uname: Linux 3.12.0-7-generic x86_64
  ApportVersion: 2.12.7-0ubuntu3
  Architecture: amd64
  Date: Thu Jan  2 09:59:33 2014
  HibernationDevice: RESUME=UUID=e6458b44-fdb9-4db5-8cac-40ee0bbf9cf6
  InstallationDate: Installed on 2013-12-31 (1 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20131231)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 004: ID 03eb:8a03 Atmel Corp. 
   Bus 001 Device 003: ID 1bcf:2987 Sunplus Innovation Technology Inc. 
   Bus 001 Device 002: ID 8087:07dc Intel Corp. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK COMPUTER INC. UX302LG
  ProcFB: 0 simple
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.12.0-7-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro recovery nomodeset
  RelatedPackageVersions:
   linux-restricted-modules-3.12.0-7-generic N/A
   linux-backports-modules-3.12.0-7-generic  N/A
   linux-firmware                            1.117
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/30/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: UX302LG.207
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: UX302LG
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX302LG.207:bd10/30/2013:svnASUSTeKCOMPUTERINC.:pnUX302LG:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX302LG:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: UX302LG
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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