Ubuntu
alsa-driver package

  1. Bug #1313904
  2. Comment #61

Comment 61 for bug 1313904

Revision history for this message
unrud (unrud) wrote :

@rykien:
Seems like a bug in the driver for the SMBus controller. i2cdetect should show the headphone amplifier at address 0x73.
I've tested init-headphone with Ubuntu 16.04.1 (you have to add the acpi_enforce_resources=lax boot parameter!) and 16.10 live images without problems. Maybe the bug was introduced in an update.