[SOLVED] Problem with Intel Audio

Message

Braindump · Post by **Braindump** » Sun Feb 24, 2013 12:45 pm

Hello,

I have the following problem:

Kde Notifications:

The audio playback device HDA Intel PCH (ALC3202 Analog) does not work.
Falling back to .

... I have sound in e.g. firefox -> YouTube Video but in programs like vlc

What that mean?

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# lspci
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)

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# dmesg | grep -i audio
[    1.501949] thinkpad_acpi: Console audio control enabled, mode: monitor (read only)
[    2.050559]   #29: ThinkPad Console Audio Control at EC reg 0x30, fw unknown

BG
Braindump

Hypnos · Post by **Hypnos** » Sun Feb 24, 2013 1:27 pm

On my Thinkpad X301:

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# dmesg | grep hda_codec
hda_codec: CX20561 (Hermosa): BIOS auto-probing.

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# ls /dev/snd/
by-path  controlC0  controlC29  pcmC0D0c  pcmC0D0p  seq  timer

These commands show that the sound device is being detected by the kernel and that it is loading the right driver. How about on your system?

If these look comparable, then maybe you need to set up ALSA mixing, as described on the wiki.

Braindump · Post by **Braindump** » Sun Feb 24, 2013 1:34 pm

Hello,

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# dmesg | grep hda_codec

... with no result. Is that good or bad?

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# ls /dev/snd
by-path    controlC29  hwC0D3    pcmC0D0p  pcmC0D7p  seq
controlC0  hwC0D0      pcmC0D0c  pcmC0D3p  pcmC0D8p  timer

... looks good I think?

I dont know what the problem is?

Hypnos · Post by **Hypnos** » Sun Feb 24, 2013 2:48 pm

emerge alsa-utils, then run "aplay -L"; my output:

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# aplay -L
null
    Discard all samples (playback) or generate zero samples (capture)
sysdefault:CARD=Intel
    HDA Intel, CONEXANT Analog
    Default Audio Device
front:CARD=Intel,DEV=0
    HDA Intel, CONEXANT Analog
    Front speakers
surround40:CARD=Intel,DEV=0
    HDA Intel, CONEXANT Analog
    4.0 Surround output to Front and Rear speakers
surround41:CARD=Intel,DEV=0
    HDA Intel, CONEXANT Analog
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Intel,DEV=0
    HDA Intel, CONEXANT Analog
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Intel,DEV=0
    HDA Intel, CONEXANT Analog
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Intel,DEV=0
    HDA Intel, CONEXANT Analog
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers

If you see a comparable array of devices, that's good.

Then, you can test the sound playback directly with the "speaker-test" command, or running aplay on the WAV files /usr/share/sounds/alsa .

If these work, then the problem is with the mixing setup or KDE.

FastTurtle · Post by **FastTurtle** » Sun Feb 24, 2013 3:22 pm

Check to see if you have the alsa flag in vlc

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emerge-pv vlc

as I suspect you don't and that's why vlc doesn't have sound.

On the no sound in KDE, I don't see any flags that could be causing the problem so it's likely a configuration issue as Hypnos suggests.

I doubt that it's a kernel config issue as you have working sound in Firefox

Braindump · Post by **Braindump** » Sun Feb 24, 2013 5:32 pm

with your help everything works fine now. Thx

fbcyborg · Post by **fbcyborg** » Fri Apr 26, 2013 7:42 pm

Hello,

I see the following message every time I insert an USB drive:
The audio playback device default does not work. Falling back to HDA Intel PCH.

I didn't understand how to solve this problem, even if the audio seems to be working anyway.

fbcyborg · Post by **fbcyborg** » Sat Nov 23, 2013 4:43 pm

Any idea?

Hypnos · Post by **Hypnos** » Sat Nov 23, 2013 5:35 pm

Where are you seeing this message?

If it's a KDE pop-up, the solution may be at this page.

fbcyborg · Post by **fbcyborg** » Sat Nov 23, 2013 5:49 pm

Hi,

thanks for replying. I see that message whenever I connect an USB device or I do (for example) ifconfig wlan0 down|up.
That's really annoying.

Hypnos · Post by **Hypnos** » Sat Nov 23, 2013 5:59 pm

Where do you see the message? dmesg, KDE pop-up, somewhere else?

If it's a KDE pop-up, try following the instructions on that page I linked.

fbcyborg · Post by **fbcyborg** » Sat Nov 23, 2013 6:03 pm

Yes, you are right! I'm sorry!

where

Well, I see it as a popup message from the notification area.
And I've already checked that the device named default is above all the other devices in each box I see in Phonon.

Hypnos · Post by **Hypnos** » Sat Nov 23, 2013 8:18 pm

For some reason you seem to have the reverse problem -- default is not working. So you can try placing HDA Intel PCH above all the others and see if that helps.

Do you have an ~/.asoundrc that manipulates default in some way? If so, maybe first try getting rid of that.

fbcyborg · Post by **fbcyborg** » Sat Nov 23, 2013 8:34 pm

Thank you so much.
It looks like I've solved the problem with your advice.

I will let you know just in case of further problems.
FYI: I don't have any ~/.asoundrc file here.