Comment 2 for bug 1172375

Thanks for thorough explanation and video in the bug report.
It seams you are using newer version of freerdp, which is currently not supported by WinConn.
Please revert to stock freerdp, provided by distribution and try to disable some of the switches.
Latest freerdp has many enchantments and I will add support for it for sure, but currently I really can't work on it because of my daytime job preoccupation :(