Hi Dan, On Mon, 18 Jan 2016 14:32:48 -0800 (PST) Dan MacDonald <[email protected]> wrote:
> I recently asked about the status of ALSA audio for the BPi in mainline on > the lemaker forums and I was pointed towards this patch: > > https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit?id=38e633f3f3756b5630c5eb66042e776d86764296 That's correct. > Not all of the ALSA mixer > controls are present and the ones that are seem to be incorrectly labelled > so it clearly needs some work yet: Which one is incorrectly labeled? What does $ amixer contents say? Make sure that you unmute (using the "M" key in alsamixer) only one of Power Amplifier DAC, Power Amplifier Mixer. If you unmute both, it will sometimes cause destructive interference. I'd suggest to mute Power Amplifier Mixer - fewers things that can go wrong. Things are unmuted in alsamixer when the box below the slider glows green, muted when it's transparent and says "MM". Note that "Power Amplifier Mute" needs to be unmuted (i.e. green) for your headphones to work normally. > Is anybody here working on the BPi ALSA driver? > Is there a more complete patch I can test? I'm working on a patch for more complete mixing in general - further work is currently blocked waiting for answers to some technical questions. However, I doubt my patches would fix your playback volume problem. I never had that problem before. The stuff I added is exclusively for capturing and loopback (so far). (If you want to try, search for sun4i-codec posts on this list, by me. It won't help, though) Regards, Danny -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
