Magic key unresponsive as well as system settings
I have been trying to run linux on a fujitsu Lifebook t series, and have two questions. One may solve the other. First, the system settings option in the top right drop down menu does not respond. When I click it nothing happens. Second I can't seem to find the right combination of keys for "Magic Key". This Fujitsu tablet has a Insert/PrtSc key and a Delete/SysRq key. When I try the key combinations outlined in what I have read, I get a Save screen shot dialog box. This keyboard requires a Fn key to be depressed for the second half (first half/second half) of the two keys I mentioned. I have tried :
the Alt + Insert/PrtSc,
Alt + Delete/SysRq,
Alt + Fn + Insert/PrtSc,
Alt + Fn + Delete/SysRq,
All of those combinations trigger the "Save screen shot dialog".
Thanks for any insight!