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[Bug 1504829] Re: [Lenovo ThinkPad SL510] Loud beep on resume from suspend


Using the latest kernel 4.3rc4:
$ uname -a
Linux janeway 4.3.0-040300rc4-generic #201510041330 SMP Sun Oct 4 17:32:10 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

The suspend / resume behaviour does not seem to have changed.
Closing, waiting for the soft confirmation beep, waiting another 5-10 seconds and opening the lid again ten times yielded 6 loud beeps, 3 soft (normal) beeps and 1 very short, loud  beep.

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  [Lenovo ThinkPad SL510] Loud beep on resume from suspend

Status in linux package in Ubuntu:

Bug description:
  After upgrading from kernel 3.13.x, my Thinkpad SL510 beeps loudly for ~50ms when opening the lid to resume from suspend. No other issues occur.
  The beep when closing the lid is quiet and lasts ~130ms. This is reproducible in 15.10.

  ApportVersion: 2.14.1-0ubuntu3.15
  Architecture: amd64
   /dev/snd/controlC0:  uwer       2247 F.... pulseaudio
                        uwer       7833 F.... audacity
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=449bf762-bd99-4fb4-9d33-f86c42cebc06
  InstallationDate: Installed on 2015-01-03 (280 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: LENOVO 28477MG
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-50-generic root=UUID=5b1f663b-f520-4c03-8df5-b66bcf2a74e3 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.16.0-50.67~14.04.1-generic 3.16.7-ckt16
   linux-restricted-modules-3.16.0-50-generic N/A
   linux-backports-modules-3.16.0-50-generic  N/A
   linux-firmware                             1.127.15
  Tags:  trusty
  Uname: Linux 3.16.0-50-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 06/19/2012
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 6JET94WW (1.52 )
  dmi.board.name: 28477MG
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr6JET94WW(1.52):bd06/19/2012:svnLENOVO:pn28477MG:pvrThinkPadSL510:rvnLENOVO:rn28477MG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 28477MG
  dmi.product.version: ThinkPad SL510
  dmi.sys.vendor: LENOVO

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