Hello Pierre-Louis, thank you for your answers and your efforts. Kind regards, Bernhard PS.: Could some info from a preinstalled Android of any help? Am 29.03.2016 um 02:04 schrieb Pierre-Louis Bossart: > If you modified the interrupt order then it's a Baytrail-CR device and > you will need to use the firmware that makes use of SSP0 (SSP2 is not > connected in this package). I am working to enable SSP0 routing directly > without the need for a new firmware but I haven't had time to test it. > > That said, we've not been successful so far with such Baytrail-CR > devices. So far the issue seem to be in the SSP0-AIF2 connection; if you > do a loopback within the DSP things work fine. Without access to the > schematics and the board information it's not straightforward to solve > the problem. > Note also that Baytrail-CR devices typically use different microphones > and speaker settings (differential mics, mono speakers typically) so you > may need to add some quirks. Just for reference if someone gets here via search engine: I have tried the firmware [1] and put it under /lib/firmware/intel/fw_sst_0f28.bin with the modified interrupt order and linux 4.5.0-rc7+, entered the amixer sequence and the speaker-test. I saw with that also no obvious errors in dmesg. Interrupts are also counted. The clicks on device open and close are not to hear anymore. But unfortunately it stays silent. [1] https://git.kernel.org/cgit/linux/kernel/git/vkoul/firmware.git/plain/intel/fw_sst_0f28_ssp0.bin?h=byt _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel