error: XDG_RUNTIME_DIR not set in the environment. error: can't connect to X server! libva info: VA-API version 1.9.0 libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/radeonsi_drv_video.so libva info: Found init function __vaDriverInit_1_9 libva info: va_openDriver() returns 0 vainfo: VA-API version: 1.9 (libva 2.8.0) vainfo: Driver version: Mesa Gallium driver 20.1.8 for AMD Radeon (TM) Pro WX Series (POLARIS11, DRM 3.37.0, 5.7.0-2-amd64, LLVM 10.0.1) vainfo: Supported profile and entrypoints VAProfileMPEG2Simple : VAEntrypointVLD VAProfileMPEG2Main : VAEntrypointVLD VAProfileVC1Simple : VAEntrypointVLD VAProfileVC1Main : VAEntrypointVLD VAProfileVC1Advanced : VAEntrypointVLD VAProfileH264ConstrainedBaseline: VAEntrypointVLD VAProfileH264ConstrainedBaseline: VAEntrypointEncSlice VAProfileH264Main : VAEntrypointVLD VAProfileH264Main : VAEntrypointEncSlice VAProfileH264High : VAEntrypointVLD VAProfileH264High : VAEntrypointEncSlice VAProfileHEVCMain : VAEntrypointVLD VAProfileHEVCMain : VAEntrypointEncSlice VAProfileHEVCMain10 : VAEntrypointVLD VAProfileJPEGBaseline : VAEntrypointVLD VAProfileNone : VAEntrypointVideoProc