Ok. If it's really a userspace thing, which I doubt, you could uninstall unneeded packages: libdrm_amdgpu1 libdrm_amdgpu1-32bit libdrm_intel1 libdrm_intel1-32bit libdrm_radeon1 libdrm_radeon1-32bit Then downgrade to the following packages of the original TW ISO - if still available: libdrm-devel libdrm2 libdrm2-32bit libdrm_nouveau2 libdrm_nouveau2-32bit libkms1