I've got a DL360 Gen 7 server with GhostBSD 10.1 and the Mate desktop. The server has the current (October 2015) HP maintenance DVD applied.
When accessing the server via the ILO connection the mouse fails to work. The keyboard works fine but the mouse never gets focus. Using XRDP for access works fine.
If anyone has any ideas I'd appreciate it. Failing that I'll open a support ticket with HP directly.