Following up on rmcd's comment: neither of my monitors is rotated, and I still have issues with the proprietary nvidia drivers.
I am now running on the open source nouveau drivers. They have a couple other glitches (I can watch flash videos only on the leftmost monitor!), but no slowdown over time. Overall much more acceptable.
Following up on rmcd's comment: neither of my monitors is rotated, and I still have issues with the proprietary nvidia drivers.
I am now running on the open source nouveau drivers. They have a couple other glitches (I can watch flash videos only on the leftmost monitor!), but no slowdown over time. Overall much more acceptable.