[wdmaudiodev] Re: KSEVENT_PINCAPS_FORMATCHANGE - bug in win8 control panel?

  • From: Matthew van Eerde <Matthew.van.Eerde@xxxxxxxxxxxxx>
  • To: "wdmaudiodev@xxxxxxxxxxxxx" <wdmaudiodev@xxxxxxxxxxxxx>
  • Date: Thu, 27 Sep 2012 15:51:10 +0000

What were the old and new lists?  What was the previously selected format?

Do you expose a "preferred" format?

From: wdmaudiodev-bounce@xxxxxxxxxxxxx 
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Neetu Sand
Sent: Thursday, September 27, 2012 4:01 AM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] KSEVENT_PINCAPS_FORMATCHANGE - bug in win8 control panel?

Hi All,

We have a driver that supports dynamic format changes on windows 7. I tried 
same driver on windows 8 and here is what I have observed:

- When I change sample rate, Sound and audio control panel correctly updates 
the sample rate list to reflect the formats related to new sample rate.
- The default selected sample rate is set to previous/last selected sample rate.
- When I try to play something in media player after changing sample rate, 
Sound and Audio CPL uses old sample rate.

Is this a bug in Windows 8 or has anything changed on windows 8??


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