Hi, On Tue, Jan 06, 2015 at 09:50:00PM +0100, Pavel Machek wrote: > On Tue 2015-01-06 14:28:57, Felipe Balbi wrote: > > On Tue, Jan 06, 2015 at 06:51:15PM +0100, Pavel Machek wrote: > > > > > > On Tue 2015-01-06 11:25:45, Felipe Balbi wrote: > > > > On Tue, Jan 06, 2015 at 06:04:33PM +0100, Pavel Machek wrote: > > > > > Hi! > > > > > > > > > > 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? > > > > > > > > $ git bisect start > > > > $ git bisect good v3.18 > > > > $ git bisect bad > > > > > > > > that'll help find what caused it. > > > > > > Telling someone to do hard and time consuming job that probably will > > > not succeed, instead of actually providing help. Very very funny. > > > > you're getting code for free, you're getting help for free. Not many > > people have N900s lying around. Running a bisection is just > > politeness. > > Now you are speaking for yourself or for TI? why bring my employer into the discussion ? > Thanks for your very valuable help. I know how to do a bisection, > thank you. then please do it. > PS: Unfortunately, N900 will not boot using nfsroot in 3.16+ at least, > and boot from MMC card is broken and has been for quite some time. Then how do you know it changed from v3.18 to v3.19-rc ? Certainly you ran v3.18 on N900 to verify that audio quality was better with that kernel. Use the very same method during bisection. -- balbi
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