Keyboard problem in XPS-13 9343 on A07

With the A07 BIOS, if I press a key several times with only a short timespan between presses, the second press doesn't register. In text editing, a word like "soon" would usually become "son", and "elephant" would become "elphant", and makes many kinds of key combinations unreliable (and renders the Vim text editor almost unusable).

I obviously haven't read the BIOS code, but it seems that whatever is compensating for the double-keypress issues might misidentify rapid keypresses as the double-keypress issue.

At any rate, A07 is *much* worse on my system than A05 (I only very rarely encountered the double keypresses), so I've downgraded my BIOS to A05.