Seems to be getting worse; now there’s flashing red crap on the screen, and I sometimes have to boot fifteen times to get a screen that isn’t all green.
Any time I boot into hardware-accelerated mode, whereas it displays fine when booting as a dumb framebuffer. Sadly, I tried the Mint 17 LiveCD, and, if anything, it’s even worse.
So, warning to the wise: if you’re buying a new laptop, don’t get one with Intel integrated graphics.