I think you need to restore Factory Keys first. (see option Restore Factroy Keys)When I try to turn on Secure Boot in the UEFI I get the message in the image. Do I need the Restore Factory Keys option?View attachment 748
Thanks again Manfred. I have exactly the same result. Not a problem for me at the moment as I am getting sound through the Displayport connection to my monitor's poor speakers.Hi William,
i think, there exists no current driver at this time. I tried to find, ... tried to find, ... tried to find in the internet without success. I think, we have to wait. And yes, while trying to install the driver from the device manager with activated "secure boot" there comes the window below: it's a problem with the digital signature (TPM / secure boot) Without "secure boot" it works fine.
View attachment 752