[wdmaudiodev] Re: GFX APO loading/debugging
- From: Preston Fick <pffick@xxxxxxxxx>
- To: wdmaudiodev@xxxxxxxxxxxxx
- Date: Tue, 30 Apr 2013 01:00:56 -0500
Hi Matthew -
Yes - that's the weird part. From the registry standpoint it looks like
everything is loading fine and all the keys/values from the INF for the APO
and it's properties are in their proper places.
I spent a lot of time debugging this tonight, and the last thing I did was
change the audio format on the stock HD Audio driver before updating with
my custom APO. After this the APO loads, the property page came up as
expected and everything works. I wouldn't expect that to be the root of a
problem like this. I'm unsure if there was something going on with the
system itself, or if the audio format had an effect. Unfortunately I can't
get the machine back into a state where it won't load the APO.
Once I get through development I have other fresh machines of the same type
to use for final testing, so if I get a concrete answer I'll follow up to
the group, but if anything stands out I'd appreciate any feedback.
Thanks!
Preston
On Mon, Apr 29, 2013 at 5:34 PM, Matthew van Eerde <
Matthew.van.Eerde@xxxxxxxxxxxxx> wrote:
> If you look under
> HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\DeviceClasses\{6994ad04-93ef-11d0-a3cc-00a0c9223196}
> (that’s KSCATEGORY_AUDIO), do you see your FX\0 properties which you’re
> setting in your .inf?****
>
> ** **
>
> *From:* wdmaudiodev-bounce@xxxxxxxxxxxxx [mailto:
> wdmaudiodev-bounce@xxxxxxxxxxxxx] *On Behalf Of *Preston Fick
> *Sent:* Monday, April 29, 2013 3:24 PM
> *To:* wdmaudiodev@xxxxxxxxxxxxx
> *Cc:* pffick@xxxxxxxxx
> *Subject:* [wdmaudiodev] GFX APO loading/debugging****
>
> ** **
>
> I am working on a GFX APO and I can load it on my development machine
> without issues (driver loads and property page loads).****
>
> ** **
>
> However when I put it on my test machine the APO shows up in Device
> Manager with the standard Windows HD Audio driver without problem codes,
> but I cannot see my System Effects property page. I rolled back to the Swap
> sample and it does the same thing. I am using 64 bit for both platforms
> (compiling for Windows Vista, loading on Windows 8), but the audio devices
> for each platform is different.****
>
> ** **
>
> It seems the key here is getting the endpoint correct - I'm pretty certain
> that ths is right (on my development machine it is eHeadphoneWave and
> eHeadphoneTopo, on the test machine it is eSpeakerWave and eSpeakerTopo).
> If I load it on other endpoints I can see the Enhancements audio tab, but
> when I load it on the eSpeakerXXX endpoint it shows no property page for
> effects at all. This tells me it's restricting the load of the generic APO,
> but is failing during my APO's loading process.****
>
> ** **
>
> I've added debug messages to the APO and Property Page DLLs, and it looks
> like they might not even be loading at all.****
>
> ** **
>
> I'm looking for some suggestions on where I might continue to debug this
> problem.****
>
>
> Thanks!****
>
> Preston****
>
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