Re: kern/43806: No sound on Thinkpad T510

[bch%methodlogic.net@localhost]

On Sun, Aug 29, 2010 at 06:40:04PM +0000, Manuel Bouyer wrote:
> The following reply was made to PR kern/43806; it has been noted by GNATS.
> 
> From: Manuel Bouyer <bouyer%antioche.eu.org@localhost>
> To: gnats-bugs%NetBSD.org@localhost
> Cc: kern-bug-people%NetBSD.org@localhost, gnats-admin%NetBSD.org@localhost, 
> netbsd-bugs%NetBSD.org@localhost,
>         lechapelaing%yahoo.fr@localhost
> Subject: Re: kern/43806: No sound on Thinkpad T510
> Date: Sun, 29 Aug 2010 20:39:10 +0200
> 
>  On Sun, Aug 29, 2010 at 06:30:06PM +0000, bch%methodlogic.net@localhost 
> wrote:
>  >  On my system (NetBSD kamloops 5.99.39 NetBSD 5.99.39 (kamloops) #205: Thu 
> Aug 26 19:35:29 PDT 2010  
> root@kamloops:/usr/obj/sys/arch/amd64/compile/kamloops amd64), I've got:
>  >  
>  >  kamloops# ls -ld /dev/hdau*
>  >  crw-r--r--  1 root  wheel  195, 0 Apr 20 19:57 /dev/hdaudio0
>  >  crw-r--r--  1 root  wheel  195, 1 Apr 20 19:57 /dev/hdaudio1
>  >  crw-r--r--  1 root  wheel  195, 2 Apr 20 19:57 /dev/hdaudio2
>  >  crw-r--r--  1 root  wheel  195, 3 Apr 20 19:57 /dev/hdaudio3
>  >  
>  >  
>  >  ....but I just deleted them, and playing (via xmms) seems to work,
>  >  but hdaudioctl now does not...
>  >  
>  >  I'll test on next reboot if my audio needs to have it's seemingly typical
>  >  "hdaudioctl set 0x00 0x01" to get audible output.

I just rebooted and indeed, xmms throws no errors and shows signs of
working (i.e. audio meters are working, timer is counting), but no
audio is emitted from built-in speakers. I reinstalled the hdaudio0
device, performed an "hdaudioctl get 0x00 > hd_before" to capture it's
current settings, "hdaudioctl set 0x00 0x01" to "jostle" the audio, then
"hdaudioctl get 0x00 0x01 > hd_after". The speakers are now making sounds,
but a "diff -bu on hd_before hd_after" yields no differences.

-bch

>  I was not aware we had a /dev/hdaudio*
>  so
>  cd /dev/ && ./MAKEDEV hdaudio0 hdaudio1 hdaudio2 hdaudio3
>  should create them if missing.
>  
>  -- 
>  Manuel Bouyer <bouyer%antioche.eu.org@localhost>
>       NetBSD: 26 ans d'experience feront toujours la difference
>  --
>  

-- 
Brad Harder
Method Logic Digital Consulting
http://methodlogic.net
http://twitter.com/bcharder