Same problem as dirkk.
Sound broken in all kernel 5.0.x ;
Error : snd_hda_intel 0000:00:09.2: azx_get_response timeout, switching to single_cmd mode: last cmd=0x0213b080
passing iommu=soft
helps but still not stable. Hangs when resume from sleep.
Hardware: Acer E5-523, AMD APU-A9-9410 with R5 graphics, 4GB DDR4 memory
Works for me.
Works!
Works!
Works!