Hi,
So there might be more than one bug here. As Raymond pointed out, the surround
speakers get front channel output rather than surround channels.
The patch I just posted fixes that, and to make it easier for you to test, I've
also made a DKMS package. Please install it and reboot (or restart the entire
alsa driver, but that might be tricky given intermodule dependencies).
This dkms package is based on the latest upstream code, so it should
also fix the broken names ('Playback Volum' instead of 'Playback
Volume').
** Attachment added: "oem-audio-hda-daily-lts-quantal-dkms_0.1_all.deb"
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1236965/+attachment/3870865/+files/oem-audio-hda-daily-lts-quantal-dkms_0.1_all.deb
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https://bugs.launchpad.net/bugs/1236965
Title:
pulseaudio does not recognize internal speakers [P180HMx, Realtek
ALC892, Speaker, Internal] volume slider problem
Status in “alsa-driver” package in Ubuntu:
New
Bug description:
steps to reproduce:
1. acquire a device with the problem, such as Clevo P180HM laptop
motherboard
2. install ubuntu 12.04 (now updated to 12.04.3 currently)
3. systray > speaker-icon > sound-settings > output tab
4. no entry for "speakers built-in audio" appears
workaround:
running the shell script mentioned in this comment helps --
https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/946232/comments/158
however, the workaround is not completely satisfactory, because
adjusting the (singular) volume-slider provided by pulseaudio only
causes some of the (multiple) volume-sliders known to alsamixer to react.
Specifically, turning the pulseaudio volume upwards only changes the
'master' and belatedly the 'pcm' volumes inside alsamixer. This ignores
'speaker clfe' + 'speaker front' + 'speaker surround playback volume'
plus maybe others. Effectively, this means audio playback is weak: instead
of spreading typical 2ch audiofiles across all internal speakers, only some
are used, and only at whatever volume alsamixer specifies. (Turning the
ignored volumes up in alsamixer causes a different problem: then it is no
longer possible to lower the sound to a relatively-quiet volume.)
Here is some information from one of the ubuntu pulseaudio/alsa devs:
https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/946232/comments/159
David Henningsson ([email protected]) wrote:
...you have unusual hardware: in addition to normal
headphones and stereo line out, you have 5.1 internal speakers. This
leads to unusual alsamixer names (e g "Speaker Front") which we do not
match for in PulseAudio. Fixing that means that we should add those
names in PulseAudio - but let's discuss that in a new bug instead.
Let me know if you would like more specifics. I have run codecgraph,
alsa-info, etc.
$ cat /proc/asound/card*/codec#* | grep --before-context=4 --after-context=1
"Subsystem Id"
Codec: Realtek ALC892
Address: 0
AFG Function Id: 0x1 (unsol 1)
Vendor Id: 0x10ec0892
Subsystem Id: 0x15588000
Revision Id: 0x100302
--
Codec: ATI R6xx HDMI
Address: 0
AFG Function Id: 0x1 (unsol 0)
Vendor Id: 0x1002aa01
Subsystem Id: 0x00aa0100
Revision Id: 0x100200
$ lspci -vvnn | grep --after-context=1 "Audio device"
00:1b.0 Audio device [0403]: Intel Corporation 6 Series/C200 Series Chipset
Family High Definition Audio Controller [8086:1c20] (rev 05)
Subsystem: CLEVO/KAPOK Computer Device [1558:8000]
--
01:00.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] Barts
HDMI Audio [Radeon HD 6800 Series] [1002:aa88]
Subsystem: CLEVO/KAPOK Computer Device [1558:8000]
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: alsa-base 1.0.25+dfsg-0ubuntu1.1
ProcVersionSignature: Ubuntu 3.5.0-41.64~precise1-generic 3.5.7.21
Uname: Linux 3.5.0-41-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.25.
ApportVersion: 2.0.1-0ubuntu17.4
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC892 Analog [ALC892 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: j 6328 F.... pulseaudio
/dev/snd/controlC0: j 6328 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xf7f00000 irq 52'
Mixer name : 'Realtek ALC892'
Components : 'HDA:10ec0892,15588000,00100302'
Controls : 36
Simple ctrls : 16
Card1.Amixer.info:
Card hw:1 'Generic'/'HD-Audio Generic at 0xf7e40000 irq 54'
Mixer name : 'ATI R6xx HDMI'
Components : 'HDA:1002aa01,00aa0100,00100200'
Controls : 6
Simple ctrls : 1
Card1.Amixer.values:
Simple mixer control 'IEC958',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [on]
Date: Tue Oct 8 12:02:44 2013
InstallationMedia: This
MarkForUpload: True
PackageArchitecture: all
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_Jack: Speaker, Internal
Symptom_Type: Volume slider, or mixer problems
Title: [P180HMx, Realtek ALC892, Speaker, Internal] volume slider problem
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/29/2011
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 4.6.4
dmi.board.asset.tag: Not Applicable
dmi.board.name: P180HMx
dmi.board.vendor: CLEVO
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: Not Applicable
dmi.chassis.type: 10
dmi.chassis.vendor: CLEVO
dmi.chassis.version: Not Applicable
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr4.6.4:bd09/29/2011:svnCLEVO:pnP180HMx:pvrNotApplicable:rvnCLEVO:rnP180HMx:rvrNotApplicable:cvnCLEVO:ct10:cvrNotApplicable:
dmi.product.name: P180HMx
dmi.product.version: Not Applicable
dmi.sys.vendor: CLEVO
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