Same problem here. Have ATI 4850. 100 % usage on one core, but in the Processes tab, Xorg runs at about 50 %, and nothing else have any notisable CPU usage.
Same problem here. Have ATI 4850. 100 % usage on one core, but in the Processes tab, Xorg runs at about 50 %, and nothing else have any notisable CPU usage.