A few controls do not work in Linux.
1. Pressing 2 or 6 while shifting does not change your hotbar selection. The others work.
2. F3 + B does not do anything.
Comments 2
Thank you for your report.
However, your ticket has been resolved as invalid.
This is a technical support issue; this site is for bug reports only. We do not have the resources to provide you with technical support.
Please use the Mojang Support Center instead.
Go to your minecraft options and click controls and click reset all then use go to the hot bar and put the #s in as what you want them to be