Comment # 4 on bug 1153946 from Ruediger Oertel

well, for the latter case I guess we do not want to go for TERM=dumb as the
virsh console definitely has the capabilities of a "normal" terminal and not
just linemode.

/dev/ttysclp0
/dev/sclp0
 -> both should stay with vt220

/dev/sclp_line0
 -> should probably go for TERM=dumb


So I'd think the questionable case is ttyS0. Is anyone using
ttyS0 on a s390x with a full featured terminal ?

or would we have any better option than to test for the terminal device node ?