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[Bug 1580553] Re: Inactive screen on laptop turns back on immediately after blanking

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>
Date: Wed, 11 May 2016 12:30:25 -0000
Reply-to: Bug 1580553 <1580553@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.6 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/v4.6-rc7-wily/

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/1580553

Title:
  Inactive screen on laptop turns back on immediately after blanking

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Inactive laptop screen fades to blank, then immediately brightens
  again showing the login screen, and stays lit.

  This happens whether the laptop if charging or running on battery.

  The problem occurs with both the gnome screensaver package installed
  and with xscreensaver.

  Indicators in the status bar in addition to the default ones include 
  Classic Menu indicator
  Dropbox indicator
  System Load indicator
  (I have been running the same set of indicators on a different, 14.04, laptop without them interfering with screen blanking behavior)

  Charging with the screen lit seems very slow and discharge seems fast,
  but this is a new laptop that came with 16.04 installed, so I don't
  really have a basis for comparison.

  I have not installed TLP on this laptop.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: apport 2.20.1-0ubuntu2
  ProcVersionSignature: Ubuntu 4.4.0-22.39-generic 4.4.8
  Uname: Linux 4.4.0-22-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  CrashReports: 664:108:116:11903:2016-05-07 00:23:37.423810907 -0500:2016-05-07 00:23:37.423810907 -0500:/var/crash/_sbin_upstart.108.crash
  CurrentDesktop: Unity
  Date: Wed May 11 06:03:10 2016
  PackageArchitecture: all
  SourcePackage: apport
  UpgradeStatus: No upgrade log present (probably fresh install)
  modified.conffile..etc.default.apport: [modified]
  mtime.conffile..etc.default.apport: 2016-04-28T21:07:24.472000
  --- 
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  emgrasso   1464 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 16.04
  HibernationDevice: RESUME=UUID=26ebcc5d-ea41-40ff-8be8-03ec45a11d99
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 004: ID 046d:c52b Logitech, Inc. Unifying Receiver
   Bus 001 Device 003: ID 04f2:b550 Chicony Electronics Co., Ltd 
   Bus 001 Device 005: ID 8087:0a2b Intel Corp. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: System76, Inc. Lemur
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-22-generic.efi.signed root=UUID=d91fefd0-99fb-416c-9315-8d8e7f460e84 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 4.4.0-22.39-generic 4.4.8
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-22-generic N/A
   linux-backports-modules-4.4.0-22-generic  N/A
   linux-firmware                            1.157
  Tags:  xenial
  Uname: Linux 4.4.0-22-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 11/29/2015
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 1.05.06RS76
  dmi.board.asset.tag: Tag 12345
  dmi.board.name: Lemur
  dmi.board.vendor: System76, Inc.
  dmi.board.version: lemu6
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: System76, Inc.
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.05.06RS76:bd11/29/2015:svnSystem76,Inc.:pnLemur:pvrlemu6:rvnSystem76,Inc.:rnLemur:rvrlemu6:cvnSystem76,Inc.:ct10:cvrN/A:
  dmi.product.name: Lemur
  dmi.product.version: lemu6
  dmi.sys.vendor: System76, Inc.
  --- 
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  emgrasso   1464 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 16.04
  HibernationDevice: RESUME=UUID=26ebcc5d-ea41-40ff-8be8-03ec45a11d99
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 004: ID 046d:c52b Logitech, Inc. Unifying Receiver
   Bus 001 Device 003: ID 04f2:b550 Chicony Electronics Co., Ltd 
   Bus 001 Device 005: ID 8087:0a2b Intel Corp. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: System76, Inc. Lemur
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-22-generic.efi.signed root=UUID=d91fefd0-99fb-416c-9315-8d8e7f460e84 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 4.4.0-22.39-generic 4.4.8
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-22-generic N/A
   linux-backports-modules-4.4.0-22-generic  N/A
   linux-firmware                            1.157
  Tags:  xenial
  Uname: Linux 4.4.0-22-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 11/29/2015
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 1.05.06RS76
  dmi.board.asset.tag: Tag 12345
  dmi.board.name: Lemur
  dmi.board.vendor: System76, Inc.
  dmi.board.version: lemu6
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: System76, Inc.
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.05.06RS76:bd11/29/2015:svnSystem76,Inc.:pnLemur:pvrlemu6:rvnSystem76,Inc.:rnLemur:rvrlemu6:cvnSystem76,Inc.:ct10:cvrN/A:
  dmi.product.name: Lemur
  dmi.product.version: lemu6
  dmi.sys.vendor: System76, Inc.

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