Screen will not wake up?

[John Arends]

I wrote about this a while ago and am curious if anyone has heard any 
similar complaints, or has any ideas.

I'm running 32 bit RHEL5 on my Precision 390, and periodically after a 
period of inactivity the screen goes black, and tapping the keyboard 
will not bring it back.

The machine is still up and normally hitting control-alt-F1, and then 
control-alt-F7 will bring me back to my desktop.

This afternoon that wouldn't even work so I logged in via ssh from my 
laptop and ran a kill -9 -1 as my user and got back to the login screen.

I'm running the most recent nvidia driver from here:
http://linux.dell.com/files/nvidia/rhel5/

Any ideas what I can do about this?

-- 
John Arends <jarends at uiuc.edu>
Network Analyst
College of ACES ITCS
University of Illinois at Urbana-Champaign