Created attachment 136416 [details]
Kernel module to toggle audio function

Thank you, Daniel. I was too blind to see the attachment.
Attaching some c/p work using/abusing bbswitch as a framework and your enable
code. So works like that. Creates a handle /proc/acpi/nvhda which takes ON and
OFF. Since my hardware doesn't have outputs I can't test it farther than
turning on and off.
Can be loaded and used while the proprietary driver is loaded to be used for
further investigations.
- Does the prop. driver react to this immediately, i.e. make audio work?
- If not, does plugging out/in the hdmi cable make it work?
- Are any pci config space changes noticeable?