kernel-packages team mailing list archive

[Alex Hung <1219687@xxxxxxxxxxxxxxxxxx>]

Some information to breathing led:

1. There is a patent on this behaviour (i.e.
http://www.google.com/patents/US6658577), and some may not want to
implement it.

2. It is usually implement by EC by detecting hardware pins. For example, SLP_S3#, SLP_S4# and perhaps others:
==========================================================
S3 Sleep Control: SLP_S3# is for power plane control.. This signal shuts off power to all non-critical systems when in S3 (Suspend To RAM), S4 (Suspend to Disk), or S5 (Soft Off) states.
S4 Sleep Control: SLP_S4# is for power plane control. This signal shuts power to all non-critical systems when in the S4 (Suspend to Disk) or S5 (Soft Off) state.
==========================================================

The above pins are not controlled by software at all and they will
change according when the system (ex. chipset) is put to s3 and s4.

The questions we need to ask ODM are 1. whether they implement the
breathing led, 2. whether EC is used to detect pins, 3. what other
software method to control it, if any.


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

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https://bugs.launchpad.net/bugs/1219687

Title:
  [Dell XPS 13 L322X] LED won't blink during suspend.

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  CID: 201209-11840 Dell XPS 13

  According to serval video clips on youtube, the power LED should blink
  during suspend.

  But it didn't blink on this system during suspend.

  [1] http://www.youtube.com/watch?v=7TSKNi-VOo8
  [2] http://www.youtube.com/watch?v=z7A2aiyzj8U&t=40s

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.8.0-29-generic 3.8.0-29.42~precise1 [modified: boot/vmlinuz-3.8.0-29-generic]
  ProcVersionSignature: Ubuntu 3.8.0-29.42~precise1-generic 3.8.13.5
  Uname: Linux 3.8.0-29-generic x86_64
  ApportVersion: 2.0.1-0ubuntu17.4
  Architecture: amd64
  Date: Mon Sep  2 03:37:36 2013
  InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release amd64 (20130820.1)
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: linux-lts-raring
  UpgradeStatus: No upgrade log present (probably fresh install)
  --- 
  AlsaVersion: Advanced Linux Sound Architecture Driver Version k3.8.0-29-generic.
  ApportVersion: 2.0.1-0ubuntu17.4
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: ALC275 Analog [ALC275 Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ubuntu     1554 F.... pulseaudio
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xd0510000 irq 45'
     Mixer name	: 'Intel PantherPoint HDMI'
     Components	: 'HDA:10ec0275,1028058b,00100008 HDA:80862806,80860101,00100000'
     Controls      : 29
     Simple ctrls  : 11
  DistroRelease: Ubuntu 12.04
  HibernationDevice: RESUME=UUID=7cf28595-73f5-41ba-b4a2-c7839c56eaec
  InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release amd64 (20130820.1)
  MachineType: Dell Inc. Dell System XPS L322X
  MarkForUpload: True
  Package: linux (not installed)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-29-generic.efi.signed root=UUID=f0ed3242-8409-4aac-b950-6e8b8cd1ff74 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.8.0-29.42~precise1-generic 3.8.13.5
  RelatedPackageVersions:
   linux-restricted-modules-3.8.0-29-generic N/A
   linux-backports-modules-3.8.0-29-generic  N/A
   linux-firmware                            1.79.6
  Tags:  precise running-unity
  Uname: Linux 3.8.0-29-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  dmi.bios.date: 04/18/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A08
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnDellInc.:bvrA08:bd04/18/2013:svnDellInc.:pnDellSystemXPSL322X:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct8:cvr0.1:
  dmi.product.name: Dell System XPS L322X
  dmi.sys.vendor: Dell Inc.

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