Carte graphique intel hd 4000


i have a big problem with my thinkpad t430s

when i install ubuntu , i have a bug from graphic intel hd 4000, when i open youtube and i watch a video.

can you help me , and excuse my for my english ,

Thank you

I’ve moved this to the category because this site isn’t designed to take tech support questions. Sorry. I’d recommend using one of the official support channels listed on the page