After Switching Sway Work Spaces, Subsequent HDMI Usage Drops/Fails/Stops

[rogerxx]

Void Linux

$ uname -m -n -o -r void 6.0.7_1 x86_64 GNU/Linux

sway-1.7_1 wayland-1.21.0_1 wayland-protocols-1.26_1 wlroots-0.15.1_1 xorg-server-xwayland-22.1.2_1

After switching Sway work spaces, subsequent HDMI usage drops/fails/stops and/or some how apparently mutes HDMI sound.

Seen this bug more than once over the past decade, bitten me more than once.

The following augmentation seems to resolve the problem.

/etc/modprobe.d/alsa.conf options snd-hda-codec-hdmi enable_silent_stream=0

I don't know why switching Sway Wayland work spaces would cause this problem, aside from likely resetting the HDMI interface upon each workspace switch.