在图形界面下那里只能选60HZ,键入xrandr
[root@localhost fglrx]# xrandr
SZ: Pixels Physical Refresh
*0 1024 x 768 ( 347mm x 260mm ) *60
1 800 x 600 ( 347mm x 260mm ) 60
2 640 x 480 ( 347mm x 260mm ) 60
3 640 x 350 ( 347mm x 260mm ) 60
4 640 x 400 ( 347mm x 260mm ) 60
5 720 x 400 ( 347mm x 260mm ) 60
6 832 x 624 ( 347mm x 260mm ) 60
Current rotation - normal
Current reflection - none
Rotations possible - normal
Reflections possible - none