Nailhead would maybe be OK as that's almost a texture more than a pattern, and resolves to solid... Maybe some birdseyes as well. But personally I'd stay away from anything more patterned than pick-and-pick/sharkskin in trousers.
Before anyone gets up in arms about how it's *possible* to do patterned trousers in some particular niche case, I'm coming at this from a practicality perspective. A pair of trousers that are very hard to pair and only go with one outfit are not something I want in my closet. If I had infinite money and infinite closet space, perhaps I'd consider it... But I don't, so I need my trousers to be easy to pair, and I'd wager that anyone on this forum who isn't Vox is in the same boat.
Here are the pants in question.