The Realtek Audio Control Manager does sit in the quick view? part ofThe 260 is a pretty basic stereo device. But it also happens
to have S/PDIF. If the hardware is not connected to anything, then
the INF file should be preventing them from being an option. If the sound
is redirected to the S/PDIF ports, then that would be reasonably consistent
with your symptoms (sound goes off to no-where).
In the installer folder, I see "RTHDCPL.exe" and I expect that is
the control panel for the RealTek audio. You might see that running
in Task Manager, while the RealTek control panel is running.
The INF files in those installers are pretty big, and I can't
see any obvious pattern to that one (i.e. how the file knows
which sections of the INF to apply).
I wish I knew of a utility that could "map the plumbing" and
indicate what is connected logically. That would help identify
where the sound samples are going when you play something.
The dxdiag.exe utility knows some things about multimedia, but
I don't know if it can help identify what is up with the audio.
I thought it was WinAMP, which had the ability to play output to
more than one destination. Perhaps WinAMP has a list of destinations
and can identify all the ways your sound samples could "get lost" ?
the toolbar, and when I right click on it I get the Realtek panel or
I have just found that by clicking the Tool button in the DIGITAL
section that brings up another window/panel with S/PDIF in/Out Settings.
These are Output Sampling Rate and Output Source.
Now on the Output Source there are 2 check buttons:
No S/PDIF output
Output digital audio source.
The 2nd button is checked and when I hover the mouse arrow over that
actual button it says The Digital Output Format (such as wave, MP3 etc)
will come out through SPDIF-Out.
In WinAmp | Preferences|Plugins| Output, I changed the output to
Nullsoft Wave Output out_wav.dll and then clicked configure to choose
either Realtek HD Output or Microsoft Sound Mapper. I tried both
actually, but no sound,
Then I selected Nullsoft DirectSound Output out_ds.dll, and again chose
either the Realtek HD device or Primary Sound Driver. Still no sound
either from speakers or headphones.
I would like to know exactly what Location 65535 is, but googling it
doesn't give me the information I want.
And like you if I knew where the actual sound was going to, 'map the
plumbing' as you say.