I'm own xps 9550. After bios update to 1.13.1 i have weird keyboard issues. Some key combinations (shift+`, Ctrl+z, Ctrl+v) stops working accidentially for some period of time. Shift, Ctrl, z, v and ` itself works fine, but pressed modifier (Shift, Ctrl) makes pressing letter keys (z, v, `) invisible.
I have dual boot (linux, windows). The issue concerns both.