No option for HDMI sound out on Zotac CI520

I just switched the hardware to a Zotac CI520 and I have no option to set the sound out to HDMI.

LibreELEC:~ # aplay -l
**** List of PLAYBACK Hardware Devices ****
card 2: PCH [HDA Intel PCH], device 0: ALC892 Analog [ALC892 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 2: PCH [HDA Intel PCH], device 1: ALC892 Digital [ALC892 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0

I´ve tried already switching the HDMI cable but no luck. I´m using a fresh install of Generic X86_64 build.
Any help would be much appreciated.

Quote from lrusak

Which version? Have you tried the latest alpha build?

Yes, installed the latest LibreELEC-Generic.x86_64-7.90.005.

The prior Asus S1-AT5NM10E it worked in this constellation out of the box. I was able to switch in audio settings to HDMI audio out and also audio passthrough.

Quote from nickr

Debug log?

IdRC

Quote from nickr

Not a debug log

05:55:01 T:139802558076992 NOTICE: Disabled debug logging due to GUI setting. Level 0.

ouch - mea culpa. Hope this one is more helpful