Are all of you on 0.8.2 linux SDL? I heard the chat T issue was fixed in autobuilds (though SDL autobuild might have bugged fullscreen currently).
The console was also bugged at some point but not anymore so maybe also try git/autobuild?
To get an autobuild, make a backup of your Xonotic folder (the unpacked zip), then run one of the scripts in misc/tools/rsync-updater.
<packer> when i see martin-t's name my blood pressure increases
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[BOT]Hоtdоg> anyone here lives near martin?
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[BOT]Hоtdоg> will pay monies for shooting him