Regarding the second question: The workaround "amixer -c 0 set 'Headphone Mic Boost',0 1" does lower the output volume significantly. If your patch does the same as the workaround, then the output volume would be significantly lower, I have not tested this yet though.
Regarding the second question: The workaround "amixer -c 0 set 'Headphone Mic Boost',0 1" does lower the output volume significantly. If your patch does the same as the workaround, then the output volume would be significantly lower, I have not tested this yet though.