2014/1/20 Axel Braun axel.braun@gmx.de
Hi,
Am Montag, 20. Januar 2014, 09:27:57 schrieb Raymond Yau:
same problem on a ThinkPad T520, sound volume is way too low - watching movie via loudspeakers is fairly impossible. Any hint you could give me? post the output of alsa-info.sh , there is a bug in alsa-driver
which
treat dock headphone and headphone to support surround 4.0 you get low volume because Amp Out vals are 0x3d instead of 0x4a
but
speaker volumes are at 100% (0dB)
Can I influence that from the running system, e.g. by echo 0x4d > ....
refer to user manual, it seem that both headset and headphone are
supported
but you cannot use conventional mic with this combo audio jack
are you using headset or headphone ?
I'm using a headset from a smartphone - it is the same 3,5mm jack
do headset mic work or not ?
works fine
try hda_analyzer to change the volume slider of those nodes 0x10 and 0x11
maybe I'm on the wrong track...but do I have to apply the diff code to the alsa source code and then rebuild the package?
http://www.alsa-project.org/main/index.php/HDA_Analyzer
?
Simple mixer control 'Speaker',0
Capabilities: pvolume pswitch Playback channels: Front Left - Front Right Limits: Playback 0 - 74 Mono: Front Left: Playback 74 [100%] [0.00dB] [on] Front Right: Playback 74 [100%] [0.00dB] [on]
Node 0x10 [Audio Output] wcaps 0xc1d: Stereo Amp-Out R/L
Control: name="Speaker Playback Volume", index=0, device=0
ControlAmp: chs=3, dir=Out, idx=0, ofs=0Control: name="Speaker Playback Switch", index=0, device=0
ControlAmp: chs=3, dir=Out, idx=0, ofs=0Device: name="CX20590 Analog", type="Audio", device=0 Amp-Out caps: ofs=0x4a, nsteps=0x4a, stepsize=0x03, mute=1 Amp-Out vals: [0x3d 0x3d]
may be related to this patch
ALSA: hda - Enable codec->pin_amp_workaround always for Conexant auto-parser
try
codec->pin_amp_workaround = 0;
if you don't have docking station , the workaround is to remove
those
pin
fix of node 0x1a and 0x1c
I dont have a docking station - but I have no clue what I should do here...
the easy way is to use model=nofixup since your bios does not have dock headphone and dock mic pins default but this also remove mic mute led
model=nofixup ad parameter for the module snd_hda_intel ?
yes
or
try hdajackretask to remove the dock headphone and dock mic so that surround 4.0 is not supported
http://git.alsa-project.org/?p=alsa-tools.git;a=blob;f=hdajackretask/README;...