Re: [LAU] mute laptop speakers with Intel HDA

From: Takashi Iwai <tiwai@email-addr-hidden>
Date: Tue Aug 07 2007 - 16:08:17 EEST

At Mon, 06 Aug 2007 23:10:00 -1000,
david wrote:
>
> Arnold Krille wrote:
> > Am Montag, 6. August 2007 schrieb Fons Adriaensen:
> >> I assume most drivers are using the same interfaces to the
> >> kernel, and the same services, and that these are relatively
> >> stable.
> >> But I could be completely wrong...
> >
> > Well, the kernel devs seem to change some interfaces rather often in binary
> > incompatible ways. And sometimes even on purpose (to drive away blob-drivers
> > like nvidia)...
> >
> > So it can be that one of these changes introduced a bug hard to find and
> > affecting only very few drivers. And as the developers will probably all have
> > the lastest kernels, they don't want to wast time by debugging a problem
> > fixed two kernel versions ago just because the user has 2.6.4 installed and
> > doesn't use a half decent distro...
>
> Note: a decent distro (I've used several) doesn't necessarily have the
> "latest" kernel - cuz the latest may still be in the very unstable realm.

No more true. Distros nowadays try to pick up the latest one as much
as possible. Take a look at recent openSUSE, Ubuntu, etc.
Of course, it's adventurous to switch to early -rc kernel. But the
released kernel is supposed to be stable. This reduces the
maintenance a lot.

However, distros stick with the older kernel version for their
"business" products, mainly for keeping the 100% binary and source
compatibility, which many ISVs prefer.
IOW, it's just the matter of money :)

> I know I've switched to newer kernels in the past and had whole bunches
> of devices quit working - for instance, had USB quit working completely.
> On one, networking quit working entirely, too. So when some developer
> tells me to "test again using the latest kernel," perhaps you understand
> why I'm not exactly eager to go do that?

Yeah, I can understand it, of course. I have a bunch of machines with
older kernels, too. But, you understand that if no report back from
the tester, the bug will be left simply broken? Testing is a part of
development cycle, and testing on the same environment is the
important factor, as I mentioned.

Takashi
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Received on Tue Aug 7 16:15:01 2007

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