Pen pressure not working on laptop

[last_hector]

hello i downlaoded the lest version of adobe illustrator cc 2020

when i wanted to add a new calligraphic brush and change his size to "pressure" , that option didn't work , i found just (fixed, random) , the others choices didn't work 

(just in laptop because when i search in youtube i found the solution of tablet

[_maria_]

moving to Illustrator community forum 

[Larry G. Schneider · Accepted solution]

Does your laptop accept pressure input? Other wise you will need a tablet.