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["uwer@xxxxxxxx" <1504829@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

On my Thinkpad SL510 I get a loud beep when opening the lid to resume from suspend.
Resuming seems to work as expected, no obvious other symptoms occur.
The beep when closing the lid sounds normal: Quiet and about 130ms in duration.
The duration of the loud beep is about 50ms or sometimes even shorter.

The same symptom has been mentioned on this closed bug report: 
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1447331/comments/14

I first experienced this after upgrading a freshly installed 14.04.1 to 14.04.2 via the LTS Enablement stack to Kernel 3.16.
https://wiki.ubuntu.com/Kernel/LTSEnablementStack

Yesterday a fresh install of 15.10 Beta 2 on the same hardware showed the same symptom.
Resuming from suspend seems to work in both cases.
The loud beep was not present in 14.04.1 with Kernel 3.13.

lsb_release -rd
Description:	Ubuntu 14.04.3 LTS
Release:	14.04

Not sure why it gives 14.04.3 above, since I never upgraded to that. It
might also be worth mentioning that since installing the LTS Enablement
stack I keep getting updates for Kernel 3.13 and also for 3.16, from
which I can choose at system startup in GRUB.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.16.0-50-generic 3.16.0-50.67~14.04.1
ProcVersionSignature: Ubuntu 3.16.0-50.67~14.04.1-generic 3.16.7-ckt16
Uname: Linux 3.16.0-50-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.15
Architecture: amd64
CurrentDesktop: Unity
Date: Sat Oct 10 20:25:56 2015
InstallationDate: Installed on 2015-01-03 (280 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
SourcePackage: linux-lts-utopic
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: linux-lts-utopic (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug trusty

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https://bugs.launchpad.net/bugs/1504829

Title:
  [Lenovo ThinkPad SL510] Loud beep on resume from suspend

Status in linux-lts-utopic package in Ubuntu:
  New

Bug description:
  On my Thinkpad SL510 I get a loud beep when opening the lid to resume from suspend.
  Resuming seems to work as expected, no obvious other symptoms occur.
  The beep when closing the lid sounds normal: Quiet and about 130ms in duration.
  The duration of the loud beep is about 50ms or sometimes even shorter.

  The same symptom has been mentioned on this closed bug report: 
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1447331/comments/14

  I first experienced this after upgrading a freshly installed 14.04.1 to 14.04.2 via the LTS Enablement stack to Kernel 3.16.
  https://wiki.ubuntu.com/Kernel/LTSEnablementStack

  Yesterday a fresh install of 15.10 Beta 2 on the same hardware showed the same symptom.
  Resuming from suspend seems to work in both cases.
  The loud beep was not present in 14.04.1 with Kernel 3.13.

  lsb_release -rd
  Description:	Ubuntu 14.04.3 LTS
  Release:	14.04

  Not sure why it gives 14.04.3 above, since I never upgraded to that.
  It might also be worth mentioning that since installing the LTS
  Enablement  stack I keep getting updates for Kernel 3.13 and also for
  3.16, from which I can choose at system startup in GRUB.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.16.0-50-generic 3.16.0-50.67~14.04.1
  ProcVersionSignature: Ubuntu 3.16.0-50.67~14.04.1-generic 3.16.7-ckt16
  Uname: Linux 3.16.0-50-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.15
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Sat Oct 10 20:25:56 2015
  InstallationDate: Installed on 2015-01-03 (280 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  SourcePackage: linux-lts-utopic
  UpgradeStatus: No upgrade log present (probably fresh install)

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