Kernel.org: 5.2.1
sid (unstable): 4.19.37-6
buster (testing): 4.19.37-5
stretch (stable): 4.9.168-1+deb9u3
jessie (oldstable): 3.16.68-2

Debian GNU/Linux device driver check & report

Giga-byte: ga-990fxa-ud3

PCI IDWorks?VendorDeviceDriverKernel
1002aa80Advanced Micro Devices [AMD] nee ATICayman/Antilles HDMI Audio [Radeon HD 6900 Series]