the xrdp-server still listens only to an IPv4-socket

Please enable IPv6 per SUSE-default. All other services/app are IPv6-enabled
for years.

--- xrdp-0.9.5/configure.ac     2017-12-27 15:32:37.000000000 +0100
+++ ipv6/configure.ac   2018-02-27 11:32:04.264579263 +0100
@@ -75,7 +75,7 @@
               [], [enable_vsock=no])
 AC_ARG_ENABLE(ipv6, AS_HELP_STRING([--enable-ipv6],
               [Build IPv6 support (default: no, experimental)]),
-              [], [enable_ipv6=no])
+              [], [enable_ipv6=yes])
 AC_ARG_ENABLE(ipv6only, AS_HELP_STRING([--enable-ipv6only],
               [Build IPv6-only (default: no)]),
               [], [enable_ipv6only=no])