Comment 3 for bug 1330145

Looks the same to me but sound works and is detected in dmesg:
ubuntu@ubuntu:~$ dmesg | grep snd
[  115.230288] snd_hda_intel 0000:00:1b.0: irq 44 for MSI/MSI-X
That's with Ubuntu 12.04.02 LTS 64 bit on the same system (LiveCD). Attached /var/log/syslog but I don't really see a difference there.

On Sunday, June 15, 2014 3:35 PM, Raymond <email address hidden> wrote:

seem problem in acpi

[    0.056622] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it
[    0.056756] ACPI: bus type PCI registered
[    0.056846] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
[    0.056979] PCI: MMCONFIG for domain 0000 [bus 00-3f] at [mem 0xf8000000-0xfbffffff] (base 0xf8000000)
[    0.058002] PCI: MMCONFIG at [mem 0xf8000000-0xfbffffff] reserved in E820
[    0.062578] PCI: Using configuration type 1 for base access

[    0.141391] pci 0000:00:1b.0: [8086:1c20] type 00 class 0x040300
[    0.141405] pci 0000:00:1b.0: reg 10: [mem 0xf7d00000-0xf7d03fff 64bit]
[    0.141469] pci 0000:00:1b.0: PME# supported from D0 D3hot D3cold
[    0.141512] pci 0000:00:1b.0: System wakeup disabled by ACPI

try livecd of working Ubuntu 12.04 and compare system log

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Title:
  PCI/internal sound card not detected

Status in “alsa-driver” package in Ubuntu:
  New

Bug description:
  This lenovo's sound worked fine under Ubuntu 12.04 LTS 32 bit, but
  upgrading to 14.04 LTS 64 I have no sound and it doesn't even detect
  the sound setup at all (in dmesg). Looks like I'll have to setup to
  run 12.04 LTS again to find out what type it should have. This is much
  like my older system where 10.04 LTS sound worked and 12.08 LTS
  didn't, later the graphics started failing on that and now both
  graphics and sound rarely work (it's realtek/nvidia).

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu4
  Uname: Linux 3.10.35-std420-amd64 x86_64
  NonfreeKernelModules: raid10 raid456 async_raid6_recov async_pq async_xor async_memcpy async_tx raid1 raid0 multipath linear ses enclosure i915 usb_storage drm_kms_helper drm r8169 mii i2c_algo_bit i2c_core video
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Sat Jun 14 20:38:10 2014
  PackageArchitecture: all
  SourcePackage: alsa-driver
  Symptom: audio
  Title: PCI/internal sound card not detected
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 02/18/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: ESKT23A
  dmi.board.name: MAHOBAY
  dmi.board.vendor: LENOVO
  dmi.board.version: Win8 STD MM DPK IPG
  dmi.chassis.type: 3
  dmi.chassis.vendor: To Be Filled By O.E.M.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnLENOVO:bvrESKT23A:bd02/18/2013:svnLENOVO:pn10093:pvrLenovoH520S:rvnLENOVO:rnMAHOBAY:rvrWin8STDMMDPKIPG:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: 10093
  dmi.product.version: Lenovo H520S
  dmi.sys.vendor: LENOVO

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