[ubuntu] wireless card hard blocked

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http://ubuntuforums.org – Hi, I recently installed ubuntu 12.10 on my medion erazer laptop. The wireless card seems not to be working properly. The command "rfkill list" shows it is hardblocked. On my windows installation it's possible to use my FN-buttons to activate my wireless. On ubuntu this is not possible. What could be the problem? (Hardware)