Hi, Thanks for your reply, and sorry for my delay. On Fri, 2017-12-01 at 06:47 +0000, Daimon Wang wrote: > I've ever work with an rt5645 on a Z8350, never get sound output. > Since you have sound on headphone, maybe u can try with different > kernel version? 4.10 ~ 4.14. I had a play with a few versions but in that series didn't have any success. I noted that in the 4.15-rc series the rt5651 driver has been overhauled, so built and tried that and found it was worse - no sound at all! It turns out my machine needs one of the flags, MCLK_EN, to not be set (I've read something which suggests that MCLK_EN is Baytrail- specific and not something to be done on Cherrytrail). Once that has been changed I do at least get headphones but still no speakers. I tried the DMIC, IN1 and IN2 maps the new driver provides but no microphone on any of them - although I don't know whether this is because one of the many many mixer controls are set wrongly. I may have another play with different combinations of recording mixer controls and see what happens. Either way, I'll submit a patch to add this machine to the quirk map so that MCLK_EN is not set by default on this hardware - that way I at least get to keep the headphone audio. Many thanks, Luke > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user