Comment 1 for bug 296481

Bingo! Disabling the KRandR service (in the "Service Manager" module in System Settings) really does the trick - the cursor doesn't jump anymore, and the video plays back fluently. I guess there's a downside to disabling this kded though, isn't it?

Well I'm throwing a movie night tomorrow anyways, time to test how X does with enabling my video output (which also worked flawlessly in Hardy, and has given me a rough time in Intrepid so far).