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phixth
n00b
Joined: 24 Apr 2005
Posts: 30
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 Posted: Sat Aug 29, 2015 6:59 pm Post subject: [solved] (Alsa) Sound is too loud |
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Hi all,
I cannot control sound of my sound card using alsamixer. I am using HDMI output. The sound is at maximum and no matter what I set for Master or PCM or basically anything else in alsamixer the sound is still too loud.
Motherboard is AsRock Q1900M and the sound card is integrated, using snd-hda-intel module.
I tried with "linux-3.18.7-gentoo" and also "linux-4.0.5-gentoo" kernel.
I also tried "alsactl init" and "alsactl store" with several reboots, but nothing helps.
Could this be a driver problem? This card should be pretty common so I have a feeling I'm doing something wrong.
Some details:
| Code: |
gentoo toor # lspci -nn|grep -i audio
00:1b.0 Audio device [0403]: Intel Corporation Atom Processor Z36xxx/Z37xxx Series High Definition Audio Controller [8086:0f04] (rev 0e)
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| Code: |
gentoo toor # lsmod|grep -i snd
snd_hda_codec_hdmi 32391 1
snd_hda_codec_realtek 48754 1
snd_hda_codec_generic 41816 1 snd_hda_codec_realtek
snd_hda_intel 17907 0
snd_hda_controller 13824 1 snd_hda_intel
snd_hda_codec 74332 5 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller
snd_hwdep 5171 1 snd_hda_codec
snd_pcm 63707 4 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller
snd_timer 16097 1 snd_pcm
snd 50497 7 snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel
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| Code: | gentoo toor # cat /proc/asound/card0/codec* | grep Codec
Codec: Realtek ALC662 rev1
Codec: Intel Valleyview2 HDMI // <== this is the one displayed in alsamixer as i'm using HDMI output
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| Code: |
toor@gentoo ~ $ cat .asoundrc
pcm.!default "plughw:0,3"
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Thanks.
Last edited by phixth on Sun Aug 30, 2015 8:44 pm; edited 1 time in total |
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Buffoon
Veteran
Joined: 17 Jun 2015
Posts: 1369
Location: EU or US
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| Posted: Sat Aug 29, 2015 7:19 pm Post subject: |
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| The idea of digital sound and digital pass-trough is to keep the original sound until it reaches the DAC. Adjusting the volume of digital sound would mean resampling and inevitable loss of quality. |
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Roman_Gruber
Advocate
Joined: 03 Oct 2006
Posts: 3847
Location: Austro Bavaria
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| Posted: Sat Aug 29, 2015 7:27 pm Post subject: |
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hda_intel is a summary for such many cards, which have suboptions to configure afaik...
I never used hdmi so far. you need to check if such featues as you expect are supported by the hardware and protocols in use.
| Quote: | | HDMI (High-Definition Multimedia Interface) is a proprietary audio/video interface for transferring uncompressed video data and compressed or uncompressed digital audio data from an HDMI-compliant source device, such as a display controller, to a compatible computer monitor, video projector, digital television, or digital audio device.[4] HDMI is a digital replacement for analog video standards. |
for the wikipedia article is for myself who never dealt with that subject, not clear if there is any audio mixer capabilities supported or included, and therefore i expect the end device, needs to provide the volume management for your use case. |
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phixth
n00b
Joined: 24 Apr 2005
Posts: 30
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| Posted: Sat Aug 29, 2015 7:37 pm Post subject: |
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I just found a solution on Archlinux forum (https://bbs.archlinux.org/viewtopic.php?id=136790).
(It's funny how fast can I found solution immediately after creating forum thread  )
In short, one needs to define a softvol control for HDMI:
Here's my .asoundrc now:
| Code: |
pcm.hdmi_hw {
type hw
card 0
device 3
}
pcm.hdmi_complete {
type softvol
slave.pcm hdmi_hw
control.name hdmi_volume
control.card 0
}
pcm.!default hdmi_complete
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Now I have a new <hdmi_vol> control in alsamixer where I can lower the volume. Finally !!
Btw. I found another topic where a guy gave up and installed PulseAudio and it worked too.
I will check that also. |
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Roman_Gruber
Advocate
Joined: 03 Oct 2006
Posts: 3847
Location: Austro Bavaria
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| Posted: Sun Aug 30, 2015 8:33 am Post subject: |
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when you do not need pulseaudio leave it out.
guys have split opinion on pulseaudio. some are happy, some not.
in my expierence it works now, but it did not for years.
afaik a soundserver which is needed to mix several audio sources ...
and glad that it worked for you...
AND common etiquete here is to edit the first topic and add [solved] when your topic is answered. So anyone who wants to answer posts can move on other topics which need more attention, thank you |
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phixth
n00b
Joined: 24 Apr 2005
Posts: 30
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| Posted: Sun Aug 30, 2015 8:44 pm Post subject: |
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| sorry, i marked it now . It's been a long time since I've been here. |
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phixth
n00b
Joined: 24 Apr 2005
Posts: 30
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| Posted: Thu Sep 03, 2015 9:13 pm Post subject: latest update |
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Update: Alsa is not working correctly in the latest stable VLC - version 2.1.5 (please see this bug: https://trac.videolan.org/vlc/ticket/11483).
One option was to unmask unstable version, or to try PulseAudio.
I tried the second one, and I must say it all works well now. No locking of audio channels, sound in VLC 2.1.5 is good too.
I always hated PulseAudio because of constant issues, but I guess after several years of bug fixing it's starting to work
My .asoundrc now:
pcm.pulse {
type pulse
}
ctl.pulse {
type pulse
}
pcm.!default {
type pulse
}
ctl.!default {
type pulse
}
If it helps anybody, I followed the PulseAudio gentoo wiki page, installed pavucontrol where I specified HDMI profile and also installed alsa-plugins + optional xfce4 pulseaudio plugin. |
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