> What about USE flags for mesa and libva? > x11-libs/libva-2.4.0:0/2::gentoo USE="X drm opengl -utils -vdpau -wayland"
media-libs/mesa-19.1.1::gentoo USE="classic dri3 egl gallium gbm gles2 llvm vaapi -d3d9 -debug -gles1 (-libglvnd) -lm_sensors -opencl -osmesa -pax_kernel -pic (-selinux) -test -unwind -valgrind -vdpau -vulkan -vulkan-overlay -wayland -xa -xvmc" > This wouldn't happen to be a 10-bit encoded x265, would it? If it is, > 10-bit hardware decoding is only supported in Kaby Lake or newer (this > could explain it decoding in software/on CPU instead of GPU.) > That's possible. Is there an easy way to tell? > > I also had to boot with UEFI or no hardware decoding happened at all. > Mine was old enough to give you a choice but video performance suffered > in BIOS boot mode. > > Damn - this is in BIOS mode... Very odd that makes a difference. Nice find. > When I got my celeron-based NUC I discovered that just because the CPU > has some hardware offloading doesn't mean software will use it. :( > This box is a NUC (NUC6i5SYB) that im using for a media PC.
