New OS for RockPro64 is here, TwisterOS Armbian

[p0g0]

Hi,

rockchip-i2s ff890000.i2s: Fail to set mclk -22 : I also have this error on armbian but does not impact the functioning.

 For the sound, have you tried to increase the alsamixer DAC :
- in terminal execute alsamixer
- with left and right arrow select DAC
- with up and down arrow increase / decrease level

& eventually other items of other alsamixer

You nailed it!  I would not have found the alsamixer tool, nor known which feature to adjust, thanks.