Bristol Digest, Vol 637, Issue 2

Send Bristol mailing list submissions to
bristol@mailman.lug.org.uk

To subscribe or unsubscribe via the World Wide Web, visit
https://mailman.lug.org.uk/mailman/listinfo/bristol
or, via email, send a message with subject or body 'help' to
bristol-request@mailman.lug.org.uk

You can reach the person managing the list at
bristol-owner@mailman.lug.org.uk

When replying, please edit your Subject line so it is more specific
than "Re: Contents of Bristol digest..."


Today's Topics:

1. Re: NO SOUND ON MINT 17.1 WITH INTEL CAED (Chris)
2. Re: NO SOUND ON MINT 17.1 WITH INTEL CAED (Amias Channer)


----------------------------------------------------------------------

Message: 1
Date: Tue, 15 Mar 2016 13:22:53 +0000
From: Chris <cshorler@googlemail.com>
To: John Cleave <drjazz@blueyonder.co.uk>, Bristol and Bath Linux User
Group <bristol@mailman.lug.org.uk>
Subject: Re: [bristol] NO SOUND ON MINT 17.1 WITH INTEL CAED
Message-ID: <83A56E95-B66A-4BA6-A176-F119565D90B3@googlemail.com>
Content-Type: text/plain; charset="utf-8"

On 14 March 2016 14:13:21 GMT+00:00, John Cleave <drjazz@blueyonder.co.uk> wrote:
>I have a serious problem with "no sound" on my engine. Could someone
>please
>help.
>
>Here is what occurs: DVD plays (via VLC). Video OK, audio u/s. WHY?
>I tried using a "music file" M.wav:
> $cat M.wav > /dev/snd/pcmC0D0
>gives "Permission denied ...". But
> $cat M.wav
>gives garbage screen (so M.wav OK)
>Importing M.wav into Audacity and "play" shows wave-form and active i/p
>monitor
>but unactivated o/p monitor under either "pulse" or "default" settings.
>
>Web hits suggest permissions problems, others go for Intel driver and
>sound
>cards.
>
>My relevant setup(?):
>CARDS:(1) alsamixer shows "card HDA Intel; Chip Intel ID 2809"
> (2)/proc/asound/cards contains the line
> "HDA Intel at 0xdf1200000 irq 14"
>DEVICES: (1) /dev/snd contains the lines
>"drwxr-xr-x 2 root root <date> 1 <time> by-path
>crw-rw----+ 1 root audio 116 "........." <device name>
>where device names are "controlC0, hwC0D0, hwC0D2, pcmC0D0c, pcmC0D0p,
>pcmC0D1p
>pcmC0D2c, pcmC0D3p, seq,timer."
> (2) lspci contains a line:
>"Audio device. Intel Corporation Device a123 (rev 31)"
> (3) /proc/asound contains items ? card0, card, Intel, modules ?
>each of which has "root root" access, in contrast to /dev/snd info.
>PERMISSIONS: /etc/group contains the lines:
>"root:x:0,...sudo:x:27,...audio:x:29:pulse,<username>,...pulse:x:117,...
>pulse-access:x:118,...<username>:x:1000"
>
>Another web hit suggests that there is a bug with the card and the
>snd-hda-intel
>drive: "try to add
>the line
>"options snd-hda-intel model = auto"
>at the very end of the alsa-base.conf file (in /etc/modprobe.d/ )". An
>attempt
>at copying this file
>was frustrated by "sorry, user <username> is not allowed to execute ...
>as root
>on machine
><machine name>." The file can be "catted" to gedit but there is no
>permission to
>save.
>
>Now stuck. Thanks, John Cleave.
>
>------------------------------------------------------------------------
>
>_______________________________________________
>Bristol mailing list
>Bristol@mailman.lug.org.uk
>https://mailman.lug.org.uk/mailman/listinfo/bristol

I'd check the device permissions and group (ls -l on the device file) and check your user is in the right group (id)

Chris
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.lug.org.uk/mailman/private/bristol/attachments/20160315/e072f967/attachment-0001.html>

------------------------------

Message: 2
Date: Tue, 15 Mar 2016 14:09:54 +0000
From: Amias Channer <me@amias.net>
To: Bristol and Bath Linux User Group <bristol@mailman.lug.org.uk>
Subject: Re: [bristol] NO SOUND ON MINT 17.1 WITH INTEL CAED
Message-ID:
<CAMgU7XVxqT0d08vN5OSdEAbNNb0ASX+Mh4tspiHEYaV4LW-e-g@mail.gmail.com>
Content-Type: text/plain; charset=UTF-8

Hello John,

i thought mint uses pulse audio which should handle the device nodes
and permissions for you.

It sounds like your sound card variant is not being detected correctly
, each manufacturer impliments intel_hda compatible sound cards
differently. Its usually just a matter of knowing which pins are
connected to which addresses.
I've seen this a lot on laptops and typically if you google
snd-hda-intel and the name of the laptop you will often find
the options line you need to configure the snd-hda-intel module correctly

You will need to tell people what hardwear you are using if you want
them to help.

a bit of dmesg or journalctl output wouldn't go a miss either.

Cheers
Amias

On 15 March 2016 at 13:22, Chris <cshorler@googlemail.com> wrote:
> On 14 March 2016 14:13:21 GMT+00:00, John Cleave <drjazz@blueyonder.co.uk>
> wrote:
>>
>> I have a serious problem with "no sound" on my engine. Could someone
>> please help.
>>
>> Here is what occurs: DVD plays (via VLC). Video OK, audio u/s. WHY?
>> I tried using a "music file" M.wav:
>> $cat M.wav > /dev/snd/pcmC0D0
>> gives "Permission denied ...". But
>> $cat M.wav
>> gives garbage screen (so M.wav OK)
>> Importing M.wav into Audacity and "play" shows wave-form and active i/p
>> monitor
>> but unactivated o/p monitor under either "pulse" or "default" settings.
>>
>> Web hits suggest permissions problems, others go for Intel driver and
>> sound cards.
>>
>> My relevant setup(?):
>> CARDS:(1) alsamixer shows "card HDA Intel; Chip Intel ID 2809"
>> (2)/proc/asound/cards contains the line
>> "HDA Intel at 0xdf1200000 irq 14"
>> DEVICES: (1) /dev/snd contains the lines
>> "drwxr-xr-x 2 root root <date> 1 <time> by-path
>> crw-rw----+ 1 root audio 116 "........." <device name>
>> where device names are "controlC0, hwC0D0, hwC0D2, pcmC0D0c, pcmC0D0p,
>> pcmC0D1p
>> pcmC0D2c, pcmC0D3p, seq,timer."
>> (2) lspci contains a line:
>> "Audio device. Intel Corporation Device a123 (rev 31)"
>> (3) /proc/asound contains items ? card0, card, Intel,
>> modules ? each of which has "root root" access, in contrast to /dev/snd
>> info.
>> PERMISSIONS: /etc/group contains the lines:
>> "root:x:0,...sudo:x:27,...audio:x:29:pulse,<username>,...pulse:x:117,...
>> pulse-access:x:118,...<username>:x:1000"
>>
>> Another web hit suggests that there is a bug with the card and the
>> snd-hda-intel drive: "try to add
>> the line
>> "options snd-hda-intel model = auto"
>> at the very end of the alsa-base.conf file (in /etc/modprobe.d/ )". An
>> attempt at copying this file
>> was frustrated by "sorry, user <username> is not allowed to execute ... as
>> root on machine
>> <machine name>." The file can be "catted" to gedit but there is no
>> permission to save.
>>
>> Now stuck. Thanks, John Cleave.
>>
>> ________________________________
>>
>> Bristol mailing list
>> Bristol@mailman.lug.org.uk
>> https://mailman.lug.org.uk/mailman/listinfo/bristol
>
>
> I'd check the device permissions and group (ls -l on the device file) and
> check your user is in the right group (id)
>
> Chris
>
> _______________________________________________
> Bristol mailing list
> Bristol@mailman.lug.org.uk
> https://mailman.lug.org.uk/mailman/listinfo/bristol



------------------------------

Subject: Digest Footer

_______________________________________________
Bristol mailing list
Bristol@mailman.lug.org.uk
https://mailman.lug.org.uk/mailman/listinfo/bristol

------------------------------

End of Bristol Digest, Vol 637, Issue 2
***************************************