xioticin’s reply in particular:
"I also am using a Dell Latitude laptop (E5450) and have had the same experience when updating the kernel which eventually leads to a black screen after kernel selection on boot. I updated my laptop this evening and once again was presented with the same black screen. I found this thread and poked around in the BIOS after reading about disabling CSM above.
I was able to fix the black screen issue by going into Advanced Boot Options in BIOS and unchecking Enable Legacy Option Roms. I have included a screenshot, though your BIOS menu looks a little different than mine. Hoping this helps!