Here is lspci -vvnn output and my current xorg.conf though I don't understand why you actually need it. As long a option is NOT used in AMDPCSDB (so I attached this aswell)
Here is lspci -vvnn output and my current xorg.conf though I don't understand why you actually need it. As long a option is NOT used in AMDPCSDB (so I attached this aswell)