On Mon 2015-01-26 15:20:28, Peter Ujfalusi wrote: > On 01/18/2015 02:01 PM, Pavel Machek wrote: > > Hi! > > > > If you have any idea about playback problems, help would be still > > welcome. I'll have to do bisect, otherwise, and it will not be easy. > > > >> In 3.18, sound is nice and clear. > >> > >> In 3.19, sound is unusable. It produces nasty tone when it should be > >> quiet, and there's at least as much noise as is sound. > >> > >> Unfortunately, list of mixers also changed (and there's cca 120 > >> settings), but a) it does not work with the old list and b) nothing I > >> could figure out did make the sound usable. Some setting resulted in > >> even more noise. > >> > >> Any idea what could have caused it? > > > > I tried audio recording this time. > > > > In 2.6.28-nokia, it is neccessary to set "Input select" na "digital > > mic", then it works. Input select being in "playback" option makes it > > easy to miss. > > > > In 3.18 and 3.19-rc3, all I can record are zeros. > > > > Does playback/recording work for you on OMAP 3430-based machines? > > Same codec (tlv320aic3106) works fine on my am335x and omap-l138 boards. > BeagleBoard-xM also fine with twl4030 codec. > > I don't have my n900 in hacking mode (it is still in use > time-to-time) but Actually, with nfsroot / loading kernel using NOLO, it is not neccessary to break your n900. It is possible to boot complete userspace without changing single bit of flash. > looking at the dts file: you might want to add ai3x-micbias-vg property to the > aic3x nodes to select the correct mic bias voltage. I can't recall what is > appropriate for n900, but 2.6.28-nokia sources might give you the answer. Ok, thanks, let me try... Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
