Hi,
i am using a Asus G71GX laptop, with the hda-intel driver.
In alsamixer, there are the playback channels:
Master, Headphone, Speaker, Bass Speaker, PCM, Mic, Mic Boost, S/PDIF s/PDIF Default, Internal Mic
and Internal Mic Boost.
The Headphones Mixer is doing nothing as far is i can tell but the Bass Speaker mixer is changing
the volume of my headphones, so i think that there is something mixed up.
Also when i adjust the Master volume, the Volume of my headphones is unaffected (maybe because it is
recognized as Bass Speaker).
For now i worked around this issue by changing my pulseaudio to always adjust PCM, which affects
speakers and headphones as expected.
I am using gentoo with a 3.2.1-gentoo-r2 kernel
alsa-lib has the version 1.0.25-r1
Regards,
Reno
Here are some debug outputs:
$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC663 Analog [ALC663 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 3: ALC663 Digital [ALC663 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
$ aplay -L
null
Discard all samples (playback) or generate zero samples (capture)
pulse
PulseAudio Sound Server
sysdefault:CARD=Intel
HDA Intel, ALC663 Analog
Default Audio Device
front:CARD=Intel,DEV=0
HDA Intel, ALC663 Analog
Front speakers
surround40:CARD=Intel,DEV=0
HDA Intel, ALC663 Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=Intel,DEV=0
HDA Intel, ALC663 Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Intel,DEV=0
HDA Intel, ALC663 Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Intel,DEV=0
HDA Intel, ALC663 Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Intel,DEV=0
HDA Intel, ALC663 Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
hdmi:CARD=Intel,DEV=0
HDA Intel, ALC663 Digital
HDMI Audio Output
$ lspci | grep Audio
00:1b.0 Audio device: Intel Corporation 82801JI (ICH10 Family) HD Audio Controller
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