O script Bash não funciona quando usado com atalho de teclado, mas funciona no console

Com a ajuda da IA ​​fiz um script, que alterna entre os dois dispositivos de áudio escolhidos por mim.

Como o nome do dispositivo muda a cada reinicialização do sistema, o script localiza os dispositivos por suas propriedades em pactl: device.product.name(por exemplo Sound BlasterX G6) e, em seguida, encontra o nome correspondente (por exemplo alsa_output.usb-Creative_Technology_Ltd_Sound_BlasterX_G6_F3004F4766X-00.analog-stereo).

O script funciona bem quando usado no console com /home/yan/Skrypty/sink-switch2.sh. A saída do log fica assim:

Start
SPEAKERS_NAME:alsa_output.pci-0000_08_00.4.analog-stereo
SOUNDBLASTER_NAME:alsa_output.usb-Creative_Technology_Ltd_Sound_BlasterX_G6_F3004F4766X-00.analog-stereo
DEFAULT:alsa_output.pci-0000_08_00.4.analog-stereo
Change to:alsa_output.usb-Creative_Technology_Ltd_Sound_BlasterX_G6_F3004F4766X-00.analog-stereo
End

No entanto, quando defino o atalho de teclado nas configurações do GNOME:

Não funciona e o log fica assim:

Start
SPEAKERS_NAME:
SOUNDBLASTER_NAME:
DEFAULT:alsa_output.pci-0000_08_00.4.analog-stereo
Change to:
End

Por que não funciona como atalho?

O roteiro:

#!/bin/bash

# Starship/Matisse HD Audio Controller
# Sound BlasterX G6

echo "Start" >> /home/yan/Skrypty/log.txt

DEFAULT=$(pactl get-default-sink)

# device.product.name
SPEAKERS="Starship/Matisse HD Audio Controller"
SOUNDBLASTER="Sound BlasterX G6"

# getting real name
SPEAKERS_NAME=$(pactl list sinks | grep -B 1 "Description:.*$SPEAKERS" | grep "Name:" | sed 's/Name: //' | tr -d '[:space:]')
SOUNDBLASTER_NAME=$(pactl list sinks | grep -B 1 "Description:.*$SOUNDBLASTER" | grep "Name:" | sed 's/Name: //' | tr -d '[:space:]')

echo "SPEAKERS_NAME:$SPEAKERS_NAME" >> /home/yan/Skrypty/log.txt
echo "SOUNDBLASTER_NAME:$SOUNDBLASTER_NAME" >> /home/yan/Skrypty/log.txt
echo "DEFAULT:$DEFAULT" >> /home/yan/Skrypty/log.txt

if [[ "$DEFAULT" == "$SPEAKERS_NAME" ]]
then
    # change to Soundblaster
    notify-send -e --expire-time=1000 "Zmiana dźwięku na: $SOUNDBLASTER"
    echo "Change to:$SOUNDBLASTER_NAME" >> /home/yan/Skrypty/log.txt
    pactl set-default-sink "$SOUNDBLASTER_NAME"
else
    # change to speakers
    notify-send -e --expire-time=1000 "Zmiana dźwięku na: $SPEAKERS"
    echo "Change to:$SPEAKERS_NAME" >> /home/yan/Skrypty/log.txt
    pactl set-default-sink "$SPEAKERS_NAME"
fi

echo "End" >> /home/yan/Skrypty/log.txt

Diferença entre ambientes:

yan@yan-ubuntu:~/Skrypty$ colordiff <(env | sort) <(sort /home/yan/Skrypty/log.txt)
1d0
< COLORTERM=truecolor
6a6
> GIO_LAUNCHED_DESKTOP_FILE_PID=15262
7a8
> GNOME_KEYRING_CONTROL=/run/user/1000/keyring
9,10d9
< GNOME_TERMINAL_SCREEN=/org/gnome/Terminal/screen/9d389c3d_3de5_4539_8fef_7d793c1c8b9c
< GNOME_TERMINAL_SERVICE=:1.191
17,19c16,18
< LANG=en_GB.UTF-8
< LESSCLOSE=/usr/bin/lesspipe %s %s
< LESSOPEN=| /usr/bin/lesspipe %s
---
> INVOCATION_ID=a27624429852440d9182ed33440a8c6a
> JOURNAL_STREAM=8:26020
> LANG=pl_PL.UTF-8
21,23c20,21
< LS_COLORS=rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:mi=00:su=37;41:sg=30;43:ca=00:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arc=01;31:*.arj=01;31:*.taz=01;31:*.lha=01;31:*.lz4=01;31:*.lzh=01;31:*.lzma=01;31:*.tlz=01;31:*.txz=01;31:*.tzo=01;31:*.t7z=01;31:*.zip=01;31:*.z=01;31:*.dz=01;31:*.gz=01;31:*.lrz=01;31:*.lz=01;31:*.lzo=01;31:*.xz=01;31:*.zst=01;31:*.tzst=01;31:*.bz2=01;31:*.bz=01;31:*.tbz=01;31:*.tbz2=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.war=01;31:*.ear=01;31:*.sar=01;31:*.rar=01;31:*.alz=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.cab=01;31:*.wim=01;31:*.swm=01;31:*.dwm=01;31:*.esd=01;31:*.avif=01;35:*.jpg=01;35:*.jpeg=01;35:*.mjpg=01;35:*.mjpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.svg=01;35:*.svgz=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.webm=01;35:*.webp=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.vob=01;35:*.qt=01;35:*.nuv=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.flv=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.yuv=01;35:*.cgm=01;35:*.emf=01;35:*.ogv=01;35:*.ogx=01;35:*.aac=00;36:*.au=00;36:*.flac=00;36:*.m4a=00;36:*.mid=00;36:*.midi=00;36:*.mka=00;36:*.mp3=00;36:*.mpc=00;36:*.ogg=00;36:*.ra=00;36:*.wav=00;36:*.oga=00;36:*.opus=00;36:*.spx=00;36:*.xspf=00;36:*~=00;90:*#=00;90:*.bak=00;90:*.crdownload=00;90:*.dpkg-dist=00;90:*.dpkg-new=00;90:*.dpkg-old=00;90:*.dpkg-tmp=00;90:*.old=00;90:*.orig=00;90:*.part=00;90:*.rej=00;90:*.rpmnew=00;90:*.rpmorig=00;90:*.rpmsave=00;90:*.swp=00;90:*.tmp=00;90:*.ucf-dist=00;90:*.ucf-new=00;90:*.ucf-old=00;90:
< MANGOHUD=1
< MEMORY_PRESSURE_WATCH=/sys/fs/cgroup/user.slice/user-1000.slice/[email protected]/session.slice/[email protected]/memory.pressure
---
> MANAGERPID=2239
> MEMORY_PRESSURE_WATCH=/sys/fs/cgroup/user.slice/user-1000.slice/[email protected]/session.slice/org.gnome.SettingsDaemon.MediaKeys.service/memory.pressure
25,31c23,24
< NVM_BIN=/home/yan/.nvm/versions/node/v20.14.0/bin
< NVM_CD_FLAGS=
< NVM_DIR=/home/yan/.nvm
< NVM_INC=/home/yan/.nvm/versions/node/v20.14.0/include/node
< OLDPWD=/home/yan
< PATH=/home/yan/.nvm/versions/node/v20.14.0/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/snap/bin
< PWD=/home/yan/Skrypty
---
> PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/snap/bin
> PWD=/home/yan
38,39c31
< SYSTEMD_EXEC_PID=3047
< TERM=xterm-256color
---
> SYSTEMD_EXEC_PID=3241
43d34
< VTE_VERSION=7600