HDA beep regression...

Luke Yelavich themuso at ubuntu.com
Wed Feb 10 00:35:16 UTC 2010


On Wed, Feb 10, 2010 at 02:41:03AM EST, Daniel J Blueman wrote:
> Hi Andy,
> 
> On Tue, Feb 9, 2010 at 3:10 PM, Andy Whitcroft <apw at canonical.com> wrote:
> > On Tue, Feb 09, 2010 at 02:48:04PM +0000, Daniel J Blueman wrote:
> >> Hi Tim, Andy,
> >>
> >> With newer mainline kernel builds (eg 2.6.33-rc) containing the new
> >> HDA beep framework, a new config option was introduced that was set
> >> on, re-introducing the (somewhat overzealous) system beep. With pulse
> >> audio not reconfiguring the PC-beep channel volume, this often
> >> saturates built-in or external speakers/headphones at undesired times
> >> (eg when shutting down).
> >>
> >> Is it reasonable to ask to change the Ubuntu mainline kernel configuration:
> >>
> >> CONFIG_SND_HDA_INPUT_BEEP_MODE=1
> >>
> >> to =0, or, disable:
> >>
> >> CONFIG_SND_HDA_INPUT_BEEP=y ?
> >
> > It is cirtainly possible to change configurations for these kernels
> > slightly from those used in the main Ubuntu kernels.  What do these two
> > do?  Which is preferred?
> 
> The HDA-beep isn't active when booting into the 2.6.32-12-generic
> Ubuntu kernel [1], but is with newer mainline kernels (eg [2]) -
> looking at the kernel .config difference, we see:
> 
> - "CONFIG_SND_HDA_INPUT_BEEP_MODE=1" was introduced in 2.6.33-rc
> - "CONFIG_SND_HDA_PATCH_LOADER" is unset in 2.6.33-rc

IMO we should just turn off CONFIG_SND_HDA_INPUT_BEEP. We turned it off for jaunty, but due to configs reshuffle etc, it was re-enabled, and now users are complaining in their masses.

Luke




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