(In reply to Takashi Iwai from comment #11) > Thanks, it's a good news -- it's at least consistent, and a bad news that > it's broken in multiple versions now :) I checked and it's the same patch that breaks the device with an upstream Kernel. > It'd be appreciated if you report this to the upstream, e.g. > bugzilla.kernel.org. Feel free to put me (tiwai@suse.de) to Cc in case you > need the assistance from distro side. https://bugzilla.kernel.org/show_bug.cgi?id=210767 @Takashi: Thanks for your quick help! Much appreciated!