Linux command
alsactl 命令
安全
权限或系统影响较大，执行前请核对目标。
常用示例
Store
sudo alsactl store
Restore
sudo alsactl restore
Example
sudo alsactl store [0]
Initialize
sudo alsactl init
Example
sudo alsactl -f [/path/to/asound.state] restore
Monitor
sudo alsactl monitor
Example
sudo alsactl -d restore
说明
alsactl is an ALSA soundcard control utility that manages sound card configuration state. It can save and restore mixer settings, volume levels, and other audio parameters. The tool is typically called automatically during system startup and shutdown to preserve audio settings across reboots.
参数
- store _card_
- Save current state to file
- restore _card_
- Restore state from file
- init _card_
- Initialize card to default state
- nrestore _card_
- Restore but don't fail on missing state file
- monitor
- Monitor driver events
- -f _file_
- State file (default: /var/lib/alsa/asound.state)
- -d
- Debug mode
- -F
- Force restore, try to restore as many controls as possible
- -g, --ignore
- Ignore missing soundcards (no error message or exit code)
- -P, --pedantic
- Don't restore mismatching control elements
- -I, --no-init-fallback
- Don't initialize cards if restore fails
- -r, --runstate _file_
- Save restore/init state to file for error reporting
FAQ
What is the alsactl command used for?
alsactl is an ALSA soundcard control utility that manages sound card configuration state. It can save and restore mixer settings, volume levels, and other audio parameters. The tool is typically called automatically during system startup and shutdown to preserve audio settings across reboots.
How do I run a basic alsactl example?
Run `sudo alsactl store` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
What does store _card_ do in alsactl?
Save current state to file