linux-kernel - Re: 2.6.24-rc7, intel audio: alsa doesn't say a beep

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Date:	Fri, 11 Jan 2008 22:55:28 +0100
From:	Harald Dunkel <harald.dunkel@...nline.de>
To:	Takashi Iwai <tiwai@...e.de>
CC:	linux-kernel@...r.kernel.org
Subject: Re: 2.6.24-rc7, intel audio: alsa doesn't say a beep

Takashi Iwai wrote:
> At Thu, 10 Jan 2008 23:02:53 +0100,
> Harald Dunkel wrote:
>> Takashi Iwai wrote:
>>> Hm...  Just to be sure, try the patch below.  It's a clean up patch
>>> that I'd like to apply later.
>>>
>> Sorry, no sound.
> 
> OK, but I'd like to know whether this makes no regression to rc6.
> Could you check?
> 

"Regression" sounds like a test suite to me, verifying that the
old problems didn't come back. Maybe you could send me a pointer?

Of course I didn't try that much yet. The kernel booted as expected,
I saw XWindow running, the mouse pointer was moving, etc. There was
just no sound, as before with rc7.

> Also, what exactly did you test?  "No sound" means that no sound from
> the headphone / line-out or from the speaker?
> 

Speaker and first headphone are the same on this laptop. If I plugin
the headphone, then the tiny speakers are disconnected. But for the
last tests no headphone was plugged in.

I tested it by running gnome-alsamixer. I tried to switch off and
on the mute buttons, change the volume and other sliders, etc.

> One interesting test would be to increase the value of udelay() in the
> reverted patch.  What happens if it's set to 500?
> 

I will try tomorrow. What exactly is this delay good for?

>>> The perex/alsa.git mm branch on kernel.org has many fixes.  Could you
>>> give it a try, too?
>>>
>> This version seems to work. But AFAICS it just reverts hda_intel.c back
>> to rc6 again, so this is no surprise.
> 
> Use mm branch.  The main branch is just an old Linus tree.
> 

AFAICS I did use the mm branch. The command to grab the sources was

git-clone git://git.kernel.org/pub/scm/linux/kernel/git/perex/alsa.git mm

Is this correct?

Regards

Harri

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