Hello. Please look at this problem: https://forums.fedoraforum.org/showthread.php?318910-Driver-for-realtek-RTL8723BS-wifi-bluetooth-chip There may be a bug in the r8723bs module. Also I'm suprising very much why I can see the ttyS4 initializing in dmesg but the /dev/ttyS4 does not exist. Thank in advance. Best regards, Segiy Vovk. Developer and sysadmin.
