https://jjacky.com/2016-03-11-what-does-it-means-when-alsactl-restore-talks-invalid-sysfs/
- Bug#807032: alsactl: sysfs_init:48: sysfs path '/sy... 積丹尼 Dan Jacobson
- Bug#807032: alsactl: sysfs_init:48: sysfs path... 積丹尼 Dan Jacobson
- Bug#807032: alsactl: sysfs_init:48: sysfs path... 積丹尼 Dan Jacobson