On Sat, Aug 07, 2021 at 12:49:07AM -0700, Jeff Woods wrote: > Specifically, commit c4824ae7db418aee6f50f308a20b832e58e997fd triggers the problem. Reverting this change restores functionality. > > The device is an RME Multiface II, using the snd-hdsp driver. > > Expected behavior: Device plays sound normally > > Exhibited behavior: When a program attempts to open the device, the following ALSA lib error happens: > > ALSA lib pcm_direct.c:1169:(snd1_pcm_direct_initialize_slave) slave plugin does not support mmap interleaved or mmap noninterleaved access > > This change hasn't affected my other computers with less esoteric hardware, so probably the problem lies with the snd-hdsp driver, but the device is unusable without reverting that commit. > > I am available to test any patches for this issue. Have you notified the developers involved in this change about this issue? Adding them now... thanks, greg k-h
