[Bug 200526] [snd_hda] hissing/static noise from headphone jack on Dell Precision M4800

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Sat Dec 29 05:20:06 UTC 2018


felselva at protonmail.com changed:

           What    |Removed                     |Added
                 CC|                            |felselva at protonmail.com

--- Comment #21 from felselva at protonmail.com ---

I was having the same problem, with the internal analog working fine (Realtek
ALC255), and the output of headphones (also Realtek ALC255) with distortion.

This was the solution for me:

I switched to the headphones:
- sysctl hw.snd.default_unit=4

Then I tweaked with the PCM levels with the mixer:
- mixer pcm 50:100

The solution for me was exactly that difference in level between the two
outputs (50:100, but other values can be used too).

Hopefully this is the case for everyone, because I've googled around a lot and
this problem isn't so uncommon.

You are receiving this mail because:
You are the assignee for the bug.

More information about the freebsd-multimedia mailing list