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Multimedia / Re: Can aswitch.exe be used for always connected/attached usb speakers?
« on: October 03, 2024, 10:00:00 pm »As the driver level could be the problem, I updated to 12.16 (was using AN 12.14)
Following a reboot there was still no sound
I also downloaded USBAUDIO-12.16.exe which unpackaged itself into \MMOS2\INSTALL\usbaudio but did not install any files anywhere. I replaced the usbaudio.sys/sym files in \mmos2 with the files from \MMOS2\INSTALL\usbaudio and rebooted.
'USBAUDIO-12.16.exe' is the old IBM driver that lacks Lars' additional features. Do not intall it. Also, *.sym exist solely to make debug reports more intelligible. They are completely passive (and generally unused), so copying in the wrong ones isn't helping anything.
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The Desktop Startup sound almost played - started but cut off about 66% of the way through.
So, you rebooted and got no sound, then did something that had no effect and rebooted. Voila, sound! Are you sure you didn't do anything else?
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Do I need to "clean up" the mmos2 setup?
Messing-around when you don't know the correct configuration is seldom helpful.
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I have the files from the Enhanced USB audio packages installed although I am not using the drivers from the package.
What does this mean? If the Enhanced USB audio packages are installed, how can you not be using its drivers?
At this point, I can only think of two possibilities:
* unlikely: maybe this is a USB Audio v2 device. With no audio streams open, set "UAC2 Adapter Wave" as the default in MM Setup, close it, then play a sound. If this fails, go back to "USB Adapter Wave".
* likely: perhaps there are still problems with xHCI isochronous transfers. File a bug report.