How come my screen goes black and I have to reboot my computer to fix it?

by on August 27, 2010

Q: SR1503wm Compaq Presario. OS is Ubuntu 10.04. upgraded to 750 meg. Have two small 40-gig HDs. Computer runs okay with ANTI-X, a simple boot-from-CD unix OS. But with Ubuntu I have a problem. At random times, usually once an hour or so, the screen goes black, hard drive light shows no action, and I can find nothing to work, except power-off. Reboot is fast, and offers recovery on everything, so I can live with it, but don’t want to.