How to change my screen resolution? TI-Android-4.2.2-JB on Beagleboneblack

Hello.

I want to change my screen resolution. environment : TI-Android-4.2.2-JB on Beagleboneblack, 7’ HDMI Touch LCD(not a cape.)

I have tried some solutions : modifing uEnv.txt → didn’t change resolution. adb shell am display-size 800x480 → dind’t fit my screen.

plz let me know how to change my screen reoslution to 800x480…

if i have to modify kernel source, plz let me know ‘where’ and ‘source to add’… sorry i request many things but i’m newb…

thank you

hello
did you find a answer?