Add a hack to fix pulseaudio default volume
Default volume, on first boot, in the greeter, matters a lot for
speech-synthesis installations.
On my test systems (KVM and VirtualBox, on Linux host), it defaults to
muted, and volume set to 6%. Couldn't figure out why. No idea how many
systems out there are impacted by such a bogus default.
Let's add a nasty workaround, we'll drop it when we switch to pipewire +
wireplumber by default.
Arnaud Rebillout
1 year, 3 months ago
| 0 | #!/bin/sh | |
| 1 | ||
| 2 | setup_pulseaudio() { | |
| 3 | # Only for lightdm or sddm. Actually what really matters is | |
| 4 | # whether pulseaudio is running. But let's err on the side | |
| 5 | # of being too restrictive. | |
| 6 | [ $(whoami) = lightdm ] || [ $(whoami) = sddm ] || return 0 | |
| 7 | # Only on first boot - either the pulseaudio cookie doesn't exist, | |
| 8 | # or it has just been created. | |
| 9 | if [ -e $HOME/.config/pulse/cookie ]; then | |
| 10 | if [ "$(( $(date +%s) - $(stat -c %Y $HOME/.config/pulse/cookie) ))" -gt 30 ]; then | |
| 11 | return 0 | |
| 12 | fi | |
| 13 | fi | |
| 14 | # Only if pactl (from pulseaudio-utils) is installed. | |
| 15 | [ -x /usr/bin/pactl ] || return 0 | |
| 16 | # | |
| 17 | # Make sure that pulseaudio is unmuted, and volume is higher than 25%. | |
| 18 | # | |
| 19 | #pactl get-sink-mute @DEFAULT_SINK@ | |
| 20 | #pactl get-sink-volume @DEFAULT_SINK@ | |
| 21 | muted=$(pactl get-sink-mute @DEFAULT_SINK@ | grep '^Mute:' | sed 's/^Mute: //') | |
| 22 | volume=$(pactl get-sink-volume @DEFAULT_SINK@ | grep -Po '\d+(?=%)' | head -n 1) | |
| 23 | if [ "$muted" = yes ]; then | |
| 24 | pactl set-sink-mute @DEFAULT_SINK@ false | |
| 25 | fi | |
| 26 | if [ "$volume" -lt 25 ]; then | |
| 27 | pactl set-sink-volume @DEFAULT_SINK@ 75% | |
| 28 | fi | |
| 29 | } | |
| 30 | ||
| 31 | # Workaround for the case when pulseaudio defaults to muted and volume close to | |
| 32 | # zero. Seen in VM (QEMU and VirtualBox) on a Linux host. Probably due to a bug | |
| 33 | # in PA or ALSA, but we handle it here, out of a better place. | |
| 34 | setup_pulseaudio |