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[Raymond <1533343@xxxxxxxxxxxxxxxxxx>]

jan 12 20:42:05 hostname kernel: WARNING: CPU: 0 PID: 1 at /build/linux-AFqQDb/linux-4.2.0/arch/x86/mm/ioremap.c:198 __ioremap_caller+0x2c5/0x380()
jan 12 20:42:05 hostname kernel: Modules linked in:
jan 12 20:42:05 hostname kernel: 
jan 12 20:42:05 hostname kernel: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.2.0-23-generic #28-Ubuntu
jan 12 20:42:05 hostname kernel: Hardware name: LENOVO 20DT0003XS/Intel powered classmate PC, BIOS JDET54WW (1.16 ) 08/19/2015
jan 12 20:42:05 hostname kernel:  0000000000000000 00000000fdd91306 ffff8803209d7ab8 ffffffff817e94c9
jan 12 20:42:05 hostname kernel:  0000000000000000 ffff8803209d7b10 ffff8803209d7af8 ffffffff8107b3d6
jan 12 20:42:05 hostname kernel:  ffff8803209d7b28 00000000fed10000 ffffc90001b90000 0000000000006000
jan 12 20:42:05 hostname kernel: Call Trace:
jan 12 20:42:05 hostname kernel:  [<ffffffff817e94c9>] dump_stack+0x45/0x57
jan 12 20:42:05 hostname kernel:  [<ffffffff8107b3d6>] warn_slowpath_common+0x86/0xc0
jan 12 20:42:05 hostname kernel:  [<ffffffff8107b465>] warn_slowpath_fmt+0x55/0x70
jan 12 20:42:05 hostname kernel:  [<ffffffff81067c15>] __ioremap_caller+0x2c5/0x380
jan 12 20:42:05 hostname kernel:  [<ffffffff81067ce7>] ioremap_nocache+0x17/0x20
jan 12 20:42:05 hostname kernel:  [<ffffffff8103a8f9>] snb_uncore_imc_init_box+0x79/0xb0
jan 12 20:42:05 hostname kernel:  [<ffffffff81039016>] uncore_pci_probe+0xd6/0x1c0
jan 12 20:42:05 hostname kernel:  [<ffffffff81414f45>] local_pci_probe+0x45/0xa0
jan 12 20:42:05 hostname kernel:  [<ffffffff81416044>] ? pci_match_device+0xf4/0x120
jan 12 20:42:05 hostname kernel:  [<ffffffff814161a3>] pci_device_probe+0xf3/0x140
jan 12 20:42:05 hostname kernel:  [<ffffffff81520eba>] driver_probe_device+0x21a/0x490
jan 12 20:42:05 hostname kernel:  [<ffffffff815211c0>] __driver_attach+0x90/0xa0
jan 12 20:42:05 hostname kernel:  [<ffffffff81521130>] ? driver_probe_device+0x490/0x490
jan 12 20:42:05 hostname kernel:  [<ffffffff8151ea5c>] bus_for_each_dev+0x6c/0xc0
jan 12 20:42:05 hostname kernel:  [<ffffffff8152065e>] driver_attach+0x1e/0x20
jan 12 20:42:05 hostname kernel:  [<ffffffff8152018b>] bus_add_driver+0x1eb/0x280
jan 12 20:42:05 hostname kernel:  [<ffffffff81d5f15a>] ? uncore_cpu_setup+0x12/0x12
jan 12 20:42:05 hostname kernel:  [<ffffffff81521a60>] driver_register+0x60/0xe0
jan 12 20:42:05 hostname kernel:  [<ffffffff814147fc>] __pci_register_driver+0x4c/0x50
jan 12 20:42:05 hostname kernel:  [<ffffffff81d5f23d>] intel_uncore_init+0xe3/0x2d8
jan 12 20:42:05 hostname kernel:  [<ffffffff81d5f15a>] ? uncore_cpu_setup+0x12/0x12
jan 12 20:42:05 hostname kernel:  [<ffffffff81002123>] do_one_initcall+0xb3/0x200
jan 12 20:42:05 hostname kernel:  [<ffffffff81099fa1>] ? parse_args+0x271/0x4a0
jan 12 20:42:05 hostname kernel:  [<ffffffff81d501c1>] kernel_init_freeable+0x17b/0x21a
jan 12 20:42:05 hostname kernel:  [<ffffffff817dda30>] ? rest_init+0x80/0x80
jan 12 20:42:05 hostname kernel:  [<ffffffff817dda3e>] kernel_init+0xe/0xe0
jan 12 20:42:05 hostname kernel:  [<ffffffff817f06df>] ret_from_fork+0x3f/0x70
jan 12 20:42:05 hostname kernel:  [<ffffffff817dda30>] ? rest_init+0x80/0x80
jan 12 20:42:05 hostname kernel: ---[ end trace dd4c0d307c7360b6 ]---
jan 12 20:42:05 hostname kernel: Error parsing PCC subspaces from PCCT
jan 12 20:42:05 hostname kernel: tpm_tis 00:05: A TPM error (6) occurred attempting to read a pcr value
jan 12 20:42:05 hostname kernel: usb 1-2.1: ep 0x81 - rounding interval to 64 microframes, ep desc says 80 microframes
jan 12 20:42:05 hostname kernel: usb 1-2.2: ep 0x81 - rounding interval to 64 microframes, ep desc says 80 microframes
jan 12 20:42:05 hostname kernel: usb 1-2.2: ep 0x82 - rounding interval to 64 microframes, ep desc says 80 microframes

** Changed in: alsa-driver (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1533343

Title:
  No sound from internal speakers after boot with connected headphones

Status in alsa-driver package in Ubuntu:
  Incomplete

Bug description:
  On Lenovo L450 laptop, when I boot the PC with headphones attached,
  then the sound via headphones will work, but there will be no sound
  from internal speakers when headphones are detached.

  I tested this couple of times and the problem is always reproduced.
  This is the procedure A:

  1. When the problem is not present, sound is present in laptop's speakers, connect the headphones
  2. initiate reboot
  3. once booted, initiate playing of some audio and check the sound from headphones - it will work OK
  4. disconnect the headphones - there is no sound from internal speakers

  Procedure B:
  1. turn off the laptop (power off)
  2. connect the headphones to the laptop
  3. power on the laptop and boot into Ubuntu 15.10
  4. once booted, initiate playing of some audio and check the sound from headphones - it will work OK
  5. disconnect the headphones - there is no sound from internal speakers

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: alsa-base 1.0.25+dfsg-0ubuntu5
  ProcVersionSignature: Ubuntu 4.2.0-23.28-generic 4.2.6
  Uname: Linux 4.2.0-23-generic x86_64
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  ygzo       2125 F.... pulseaudio
   /dev/snd/controlC0:  ygzo       2125 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Tue Jan 12 20:44:49 2016
  InstallationDate: Installed on 2015-10-05 (99 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  PackageArchitecture: all
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed
  Symptom_Card: Built-in Audio - HDA Intel PCH
  Symptom_Jack: Speaker, Internal
  Symptom_Type: Only some of outputs are working
  Title: [20DT0003XS, Realtek ALC3232, Speaker, Internal] Playback problem
  UpgradeStatus: Upgraded to wily on 2015-11-03 (70 days ago)
  dmi.bios.date: 08/19/2015
  dmi.bios.vendor: LENOVO
  dmi.bios.version: JDET54WW (1.16 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: Intel powered classmate PC
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0E50510 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: dmi:bvnLENOVO:bvrJDET54WW(1.16):bd08/19/2015:svnLENOVO:pn20DT0003XS:pvrThinkPadL450:rvnLENOVO:rnIntelpoweredclassmatePC:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone:
  dmi.product.name: 20DT0003XS
  dmi.product.version: ThinkPad L450
  dmi.sys.vendor: LENOVO

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