A:AnswerIf it's under warranty and those two things have failed, contact Logitech to get replacements. They should not charge you anything for them....If you bought Geek Squade protection, you should just be able to physically take them into a best buy store to the Geek Squad desk and exchange them for a whole new keyboard and mouse with dongle. It seem kind of like overkill but, sell off the other/extra keyboard on Ebay and keep the new mouse and dongle.
A:AnswerWorks out of the box on MX Linux 21 "Wildflower".
Some of the keybindings aren't working, but it's only some of the oddball keys such as the "zoom" keys on the side and the "media center" key on top. I'm sure this can be resolved by editing some keybindings somewhere, but who really uses those anyway?
A:AnswerYes, this keyboard features a pause key as well as other media controls. Media controls for a keyboard require that the keyboard manufacturer's drivers to be installed, rather than relying on Windows generic keyboard drivers. You will want to install the software that comes with the keyboard.