I can suspend with gnome-power-manager.
But when I resume from suspend, the color is not correct,maybe does not have enough bits deep.
when I resume from hibernate with gnome-power-manager,the color is correct.
Created attachment 211264 [details]
camera shot of screen
after I update kernel 2.6.30-r5 to 2.6.31-r6, the color is right after resume from suspend.