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[Ben Harris <bjh21@xxxxxxxxxxx>]

Tested against 4.1.0-040100rc7.201506080035.  The dell-led module
doesn't autoload unless I put in place the workaround modprobe.d file
metioned in the original report.

** Tags added: kernel-bug-exists-upstream kernel-bug-exists-
upstream-4.1-rc7

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

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https://bugs.launchpad.net/bugs/1399952

Title:
  [Dell Latitude 2110] dell_led driver does not auto-load (bad alias)

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  On my Latitude 2110, the "dell_led" driver is useful for controlling
  the LED on the lid.  However, the driver doesn't load automatically on
  boot, and so /sys/class/leds/dell::lid doesn't exist.  I can load the
  module manually (with "sudo modprobe dell_led"), or I can put this
  line in /etc/modprobe.d/local-dell-led.conf:

  alias wmi:F6E4FE6E-909D-47CB-8BAB-C9F6F2F8D396 dell_led

  If I do the latter, then the module loads automatically at boot.

  I note that "modinfo dell_led" says:

  alias:          wmi:F6E4FE6E-909D-47cb-8BAB-C9F6F2F8D396

  Note that the "47cb" there is in lower case.  I suspect that this is
  the cause of the problem.

  I also note that the "hp_wmi" driver has a "wmi:" alias with lower-
  case letters in, so it may require a similar fix.

  ---
  ApportVersion: 2.14.1-0ubuntu3.11
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  bjh21      2415 F.... pulseaudio
  CurrentDesktop: Unity
  DistributionChannelDescriptor:
   # This is a distribution channel descriptor
   # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
   canonical-oem-motts-20100121-3
  DistroRelease: Ubuntu 14.04
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=5f11e886-4c98-43d9-8d51-6ab48f0bff3f
  InstallationDate: Installed on 2010-06-09 (1812 days ago)
  InstallationMedia: Ubuntu GNU/Linux 9.10 "Karmic" - Build i386 LIVE Binary 20100121-21:52
  MachineType: Dell Inc. Latitude 2110
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-38-generic root=UUID=a7f66818-5a12-4932-922a-b05d92593b24 ro quiet splash crashkernel=384M-:128M crashkernel=384M-:128M crashkernel=384M-:128M vt.handoff=7
  ProcVersionSignature: Ubuntu 3.16.0-38.52~14.04.1-generic 3.16.7-ckt10
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-38-generic N/A
   linux-backports-modules-3.16.0-38-generic  N/A
   linux-firmware                             1.127.12
  StagingDrivers: rts5208
  Tags:  trusty staging
  Uname: Linux 3.16.0-38-generic i686
  UpgradeStatus: Upgraded to trusty on 2014-08-15 (284 days ago)
  UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare wireshark
  _MarkForUpload: True
  dmi.bios.date: 03/09/2010
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A00
  dmi.board.name: 0N61H4
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA00:bd03/09/2010:svnDellInc.:pnLatitude2110:pvr:rvnDellInc.:rn0N61H4:rvr:cvnDellInc.:ct8:cvr:
  dmi.product.name: Latitude 2110
  dmi.sys.vendor: Dell Inc.

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