Re: [Alsa-user] No sound cards seen with kernel 4.17.2 and 4.17.3

[Peter C. <pe...@pe...>]

>You might try disabling SME (secure memory encryption) in the BIOS,
>but in theory, this should not make any difference.

I could not find SME in the bios.  I disabled GMI enryption control,
xGMI encryption control and CC6 memory region encryption, in case they
were other names for the same thing.  No difference.

>From google, quoting a query to AMD, my processor, a 2700X does not
support SME.
https://github.com/AMDESE/AMDSEV/issues/1

I feel like this is a rabbit hole I am going down...

>From 4.17.3 I still have:
[   12.125873] snd_hda_intel 0000:09:00.1: Handle vga_switcheroo audio
client
[   12.126197] snd_hda_intel 0000:09:00.1: SME is active, device will
require DMA bounce buffers
[   12.126427] snd_hda_intel 0000:09:00.1: SME is active, device will
require DMA bounce buffers
[   12.126788] snd_hda_intel 0000:0b:00.3: SME is active, device will
require DMA bounce buffers
[   12.127027] snd_hda_intel 0000:0b:00.3: SME is active, device will
require DMA bounce buffers


and it still does not pick up the sound hardware.