ILL OP solved his problem by changing motherboard from Gigabyte B450 Aorus Elite to Asus PRIME B450-PLUS. Mine Asus X570 + Picasso AMD Ryzen 3200G suspends to RAM OK. Possible reasons: 1. EFI firmware. 2. Problems with LED subsystem. https://forums.opensuse.org/showthread.php/553786-AMDGPU-errors-and-occasional-crashes-hangs?p=3031924#post3031924 https://forums.opensuse.org/showthread.php/553786-AMDGPU-errors-and-occasional-crashes-hangs?p=3032042#post3032042