Miguel Palhas
014dbde21d
GDM_BACKEND was a typo for GBM_BACKEND; nothing read it, since SDDM is the display manager here. Firefox/Zen decode in a separate RDD process whose sandbox denies /dev/nvidia*, so nvidia-vaapi-driver never initialised there and all playback fell back to software. Confirmed on the running session: the GPU process held 26 nvidia fds, both RDD processes held zero. Co-Authored-By: Claude <noreply@anthropic.com>