Hi List,
I have an ASUS G73S laptop with our favorite OS installed and all
up-to-date.
Sound has always "just worked"
When I use the Preferences>Sound app I can setup the hardware, input,
output and was overall very impressed.
One can check each speaker and the laptop has a front left and right and
also has a bass speaker which seems to be connected to the left rear.
The various players seem to work fine e.g mplayer, JuK, VLC media player.
Recently I wanted to play a movie off the internet and so out came Firefox.
Imagine my surprise as I hear only the background music from the rear
channel - the front left and right appear to have disappeared.
When I plug in some headphones, it seems that the phones only pick up
right rear and left rear - front left and right are gone (laptop
speakers are muted due to headphones being plugged in)
So one cannot listen to audio from internet via flash player........
I have the high definition digital audio disabled as I understand this
is for the HDMI audio system which I have not played with.
I think alsa and pulse audio are installed.
rpm -qa |grep pulse
pulseaudio-module-gconf-0.9.21-13.el6.x86_64
pulseaudio-utils-0.9.21-13.el6.i686
pulseaudio-module-bluetooth-0.9.21-13.el6.x86_64
pulseaudio-0.9.21-13.el6.x86_64
pulseaudio-libs-glib2-0.9.21-13.el6.i686
pulseaudio-libs-glib2-0.9.21-13.el6.x86_64
pulseaudio-module-x11-0.9.21-13.el6.x86_64
kde-settings-pulseaudio-4.3.1-1.el6.centos.noarch
pulseaudio-gdm-hooks-0.9.21-13.el6.x86_64
pulseaudio-esound-compat-0.9.21-13.el6.x86_64
alsa-plugins-pulseaudio-1.0.21-3.el6.i686
pulseaudio-libs-0.9.21-13.el6.i686
alsa-plugins-pulseaudio-1.0.21-3.el6.x86_64
fluxbox-pulseaudio-1.1.1-5.el6.noarch
pulseaudio-libs-0.9.21-13.el6.x86_64
pulseaudio-libs-zeroconf-0.9.21-13.el6.x86_64
pulseaudio-utils-0.9.21-13.el6.x86_64
rpm -qa |grep alsa
alsa-plugins-oss-1.0.21-3.el6.x86_64
alsa-utils-1.0.21-3.el6.x86_64
alsa-plugins-samplerate-1.0.21-3.el6.i686
alsa-plugins-vdownmix-1.0.21-3.el6.x86_64
alsa-plugins-speex-1.0.21-3.el6.x86_64
alsa-plugins-usbstream-1.0.21-3.el6.i686
alsa-lib-1.0.22-3.el6.i686
kmod-alsa-1.0.24-1.el6.elrepo.x86_64
alsamixergui-0.9.0-0.9.rc2.el6.x86_64
alsa-lib-1.0.22-3.el6.x86_64
alsa-plugins-upmix-1.0.21-3.el6.x86_64
alsa-plugins-usbstream-1.0.21-3.el6.x86_64
alsa-plugins-upmix-1.0.21-3.el6.i686
alsa-plugins-pulseaudio-1.0.21-3.el6.i686
alsa-plugins-samplerate-1.0.21-3.el6.x86_64
alsa-plugins-pulseaudio-1.0.21-3.el6.x86_64
alsa-plugins-vdownmix-1.0.21-3.el6.i686
alsa-plugins-speex-1.0.21-3.el6.i686
alsa-plugins-oss-1.0.21-3.el6.i686
Some stats on the machine:
cat /proc/asound/version
Advanced Linux Sound Architecture Driver Version 1.0.24.
Compiled on Apr 29 2011 for kernel 2.6.32-71.el6.x86_64 (SMP).
cat /proc/asound/cards
0 [PCH ]: HDA-Intel - HDA Intel PCH
HDA Intel PCH at 0xf6a00000 irq 35
1 [NVidia ]: HDA-Intel - HDA NVidia
HDA NVidia at 0xf4080000 irq 17
cat /proc/asound/devices
1: : sequencer
2: [ 0- 1]: digital audio playback
3: [ 0- 0]: digital audio playback
4: [ 0- 0]: digital audio capture
5: [ 0- 0]: hardware dependent
6: [ 0] : control
7: [ 1- 9]: digital audio playback
8: [ 1- 8]: digital audio playback
9: [ 1- 7]: digital audio playback
10: [ 1- 3]: digital audio playback
11: [ 1- 3]: hardware dependent
12: [ 1- 2]: hardware dependent
13: [ 1- 1]: hardware dependent
14: [ 1- 0]: hardware dependent
15: [ 1] : control
33: : timer
cat /proc/asound/pcm
00-00: ALC269VB Analog : ALC269VB Analog : playback 1 : capture 1
00-01: ALC269VB Digital : ALC269VB Digital : playback 1
01-03: HDMI 0 : HDMI 0 : playback 1
01-07: HDMI 0 : HDMI 0 : playback 1
01-08: HDMI 0 : HDMI 0 : playback 1
01-09: HDMI 0 : HDMI 0 : playback 1
lsmod |grep snd
snd_seq_dummy 1846 0
snd_hda_codec_hdmi 24897 4
snd_hda_codec_realtek 324530 1
snd_hda_intel 25565 2
snd_hda_codec 96476 3
snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel
snd_hwdep 6874 1 snd_hda_codec
snd_seq 57357 1 snd_seq_dummy
snd_seq_device 6882 2 snd_seq_dummy,snd_seq
snd_pcm 88945 3
snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
snd_timer 23087 2 snd_seq,snd_pcm
snd 73879 14
snd_seq_dummy,snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_seq,snd_seq_device,snd_pcm,snd_timer
soundcore 8086 1 snd
snd_page_alloc 8692 2 snd_hda_intel,snd_pcm
sudo lspci -vvv
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset
Family High Definition Audio Controller (rev 05)
Subsystem: ASUSTeK Computer Inc. Device 1a13
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 35
Region 0: Memory at f6a00000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
Address: 00000000fee04000 Data: 4064
Capabilities: [70] Express (v1) Root Complex Integrated Endpoint,
MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s
<64ns, L1 <1us
ExtTag- RBE- FLReset+
DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+
TransPend-
LnkCap: Port #0, Speed unknown, Width x0, ASPM unknown,
Latency L0 <64ns, L1 <1us
ClockPM- Surprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; Disabled- Retrain- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed unknown, Width x0, TrErr- Train- SlotClk-
DLActive- BWMgmt- ABWMgmt-
Capabilities: [100] Virtual Channel <?>
Capabilities: [130] Root Complex Link <?>
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel
01:00.1 Audio device: nVidia Corporation GF106 High Definition Audio
Controller (rev a1)
Subsystem: ASUSTeK Computer Inc. Device 2048
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin B routed to IRQ 17
Region 0: Memory at f4080000 (32-bit, non-prefetchable) [size=16K]
Capabilities: [60] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
Address: 0000000000000000 Data: 0000
Capabilities: [78] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <4us,
L1 <64us
ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq- AuxPwr-
TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x16, ASPM L0s L1,
Latency L0 <256ns, L1 <4us
ClockPM+ Surprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; RCB 128 bytes Disabled- Retrain- CommClk-
ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+
DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Not Supported, TimeoutDis+
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-
LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance-
SpeedDis-, Selectable De-emphasis: -6dB
Transmit Margin: Normal Operating Range,
EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -6dB
Kernel driver in use: HDA Intel
Kernel modules: snd-hda-intel
Not sure what other info can be of help.
Anyone else have this front / back swap issue?
Anyone have any ideas why no front channel audio output on flash/firefox??
What if anything allows these various audio channels to connect / cross
connect?
TIA for any suggested reading - my google foo has failed to locate
anything recent that might relate to CentOS 6.