Comment 1 for bug 781402

I have the same exact problem. I've installed Ubuntu 11.04 about 4 times, and each time I've experienced the same issue. Every time I leave my computer idle long enough for the display to go to sleep, it freezes on the screensaver when I "awaken" it. All I am able to do is move the cursor. I'm on an ASUS Essentio Series CM5570 desktop computer. I've noticed the original poster is also using an ASUS, but a different model. I am somewhat suspecting it could be an issue with the hardware, but I'm not sure.

However, I have also noticed that when I use "Blank Screen" for screensaver choice, the freezing does not occur upon awakening the display.

I hope this narrows it down a bit. I would appreciate any help on this. :)