Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

The audio only works in high quality when I boot linux with the charger plugged in.
When I boot it only on battery it lost audio quality.
I have already enabled 'lfe-remixing', setted channels to 6 and specified them in pulseaudio files, but the problem still.

How can I set the audio quality to high, regardless of anything?

share|improve this question
I dunno... but just try alsamixer command from terminal... If it didn't work..just ignore –  VenkiPhy6 May 8 '14 at 13:23
@Venki, thanks for your tip, but everything is on maximum, but I just got sound on the left side. –  BernardoLima May 8 '14 at 13:47
Did sound on battery previously work okay with other operating systems? Which sound card driver are you using and can you try disabling power saving on it - see Pops when starting and stopping playback? –  bain May 8 '14 at 14:46

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.