The problem is still there for me as well (Asus U1F).
Just as a side note: When I use model=lenovo then it works, except if the headphones are plugged in before or during boot-up, in which case I have to unplug and plug them in again to mute the internal speaker.
The problem is still there for me as well (Asus U1F).
Just as a side note: When I use model=lenovo then it works, except if the headphones are plugged in before or during boot-up, in which case I have to unplug and plug them in again to mute the internal speaker.