apu

i have amd a6 9225 cpu and a4 radeon graphics but my linux kernbel canot find modules for it(it's stoney ridge series). dmesg prompt: [ 31.494604] [drm:bios_parser_get_connector_id [amdgpu]] ERROR Can't find connector id 3 in connector table of size 3. [ 31.496349]...

I'm absolutely new to linux.After finding about linux,I just felt like I need to see this.So I installed linux mint 19.2 (cinamon) in a laptop without any problem. After that,I decided to install it to my desktop but got issues like auto rebooting,freezing,keyboard not functioning.I was able...