When resuming video playing on recent linux 5.5.x kernel with recent nvidia driver, audio playback when paused for 5 seconds (the point when pulseaudio suspends the alsa driver inside nvidia), it becomes extremely slow and will hang on a poll() syscall trying to resume alsa. This also requires playing audio over HDMI.
Requirements:
= 5.5 kernel
440.44 nvidia dirver
audio playing over HDMI
using pulseaudio (works fine with direct to ALSA)
Confirmed on:
driver: 440.59-9
kernel: 5.5.5-arch1-1
Documented here with logs: Pulseaudio freezes in pa_mainloop_poll causing mpv video player to freeze (#807) · Issues · PulseAudio / pulseaudio · GitLab