roundduckman@devuan-omen-gaming:~$ sudo apt -t ascii-backports install xserver-xorg-video-nvidia python3-pycuda python-pycuda primus nvidia-vulkan-icd nvidia-vulkan-common nvidia-visual-profiler nvidia-vdpau-driver nvidia-smi nvidia-settings nvidia-profiler nvidia-opencl-icd nvidia-opencl-common nvidia-modprobe nvidia-libopencl1 nvidia-kernel-dkms nvidia-kernel-common nvidia-installer-cleanup nvidia-egl-wayland-icd nvidia-egl-wayland-common nvidia-egl-icd nvidia-egl-common nvidia-driver-libs-i386 nvidia-driver-libs nvidia-driver-bin nvidia-driver nvidia-detect nvidia-cuda-toolkit nvidia-cuda-gdb nvidia-cuda-mps nvidia-alternative mate-sensors-applet-nvidia mate-optimus libopengl0-glvnd-nvidia libnvrtc9.1 libnvrtc8.0 libnvidia-glcore libnvidia-encode1 libnvtt-bin xserver-xorg-core libegl1-glvnd-nvidia libegl1-glvnd-nvidia nvidia-opencl-dev openjdk-8-jre libglvnd0-nvidia libatk-wrapper-java-jni ocl-icd-opencl-dev nvidia-driver-libs:i386 libgl1-nvidia-glvnd-glx
Reading package lists... Done
Building dependency tree
Reading state information... Done
xserver-xorg-core is already the newest version (2:1.19.2-1+deb9u2).
xserver-xorg-core set to manually installed.
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 libatk-wrapper-java-jni : Depends: libatk-wrapper-java (>= 0.33.3-13+deb9u1) but it is not going to be installed
 libgl1-nvidia-glvnd-glx : Depends: libgl1xxx (>= 0.2.999) but it is not installable or
                                    libgl1-glvnd-nvidia-glx but it is not going to be installed
 libglvnd0-nvidia : Conflicts: libglvnd0 but 1.0.0+git20180308-2~bpo9+1 is to be installed
 nvidia-driver-libs : Conflicts: libgl1 (> 0)
                      Conflicts: libgl1-mesa-glx (>= 17) but 17.3.9-1~bpo9+1 is to be installed
                      Conflicts: libglvnd0 (> 0) but 1.0.0+git20180308-2~bpo9+1 is to be installed
                      Conflicts: libglx0 (> 0) but 1.0.0+git20180308-2~bpo9+1 is to be installed
                      Recommends: libgles-nvidia2 (= 390.48-2~bpo9+3) but it is not going to be installed
 nvidia-driver-libs:i386 : Depends: libgl1-nvidia-glvnd-glx:i386 (= 390.48-2~bpo9+3) but it is not going to be installed
                           Depends: nvidia-egl-icd:i386 (= 390.48-2~bpo9+3) but it is not going to be installed
                           Depends: libegl1-glvnd-nvidia:i386 but it is not going to be installed
                           Conflicts: libgl1 (> 0)
                           Conflicts: libgl1-mesa-glx (>= 17) but 17.3.9-1~bpo9+1 is to be installed
                           Conflicts: libglvnd0 (> 0) but 1.0.0+git20180308-2~bpo9+1 is to be installed
                           Conflicts: libglx0 (> 0) but 1.0.0+git20180308-2~bpo9+1 is to be installed
                           Recommends: libopengl0:i386 but it is not going to be installed or
                                       libopengl0-glvnd-nvidia:i386 but it is not going to be installed
                           Recommends: libglx-nvidia0:i386 (= 390.48-2~bpo9+3) but it is not going to be installed
                           Recommends: libgles-nvidia1:i386 (= 390.48-2~bpo9+3) but it is not going to be installed
                           Recommends: libgles-nvidia2:i386 (= 390.48-2~bpo9+3) but it is not going to be installed
                           Recommends: nvidia-vulkan-icd:i386 (= 390.48-2~bpo9+3) but it is not going to be installed
 ocl-icd-opencl-dev : Depends: ocl-icd-libopencl1 (= 2.2.11-1) but it is not going to be installed
                      Recommends: libgl1-mesa-dev but it is not going to be installed or
                                  libgl-dev
E: Unable to correct problems, you have held broken packages.
roundduckman@devuan-omen-gaming:~$