The slowdown problem persists with the 302.17 beta driver, downloaded from the x-swat/x-updates ppa and installed using jockey-gtk.
I should add that I am running two graphics cards powering two 1920x1200 displays. My original configuration had one of the two monitors rotated, but the problem occurs whether this monitor is rotated or not.
I want to repeat that this same hardware worked normally under 10.04.
The slowdown problem persists with the 302.17 beta driver, downloaded from the x-swat/x-updates ppa and installed using jockey-gtk.
I should add that I am running two graphics cards powering two 1920x1200 displays. My original configuration had one of the two monitors rotated, but the problem occurs whether this monitor is rotated or not.
I want to repeat that this same hardware worked normally under 10.04.