Although I chuckled, time to be a killjoy!

This image is racist because Tom has east Asian caricature features of the buck teeth and closed eyes, and is in a cartoonishly small bed as east Asian people are often shorter compared to the western average height. My first thought was the the joke was that Tom has to squint, another racist trope, because the poor video card can’t handle the high resolution.

My second thought was that he was too big for the bed, which appears to be the actual joke. Sadly it was spoiled because of the overt racism in the chosen image so it just got a chuckle for the real punchline.

tvtropes.org/pmwiki/pmwiki.php/…/AsianBuckTeeth