System: HP Pavillion Graphics: ATI RADEON FORCE 3D 4550
i have tried to install Ubuntu 10.10 from Install/Live DVD and the screen flashes on and off.
Tried in text mode it installed but when booted the screen flashes on and off. Can you help?
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If you're using a desktop, or a laptop with the ability to use an external monitor, try using a different monitor. Using the open source drivers, my desktop monitor would display "no signal" but once I hooked it up to another monitor, it worked fine. Then when I installed the proprietary ATi drivers, my first monitor worked fine. I'm not sure how common that issue is, but it's worth a try if you have a spare monitor on hand. If there's a way to enable the proprietary drivers before booting from the liveCD, then you could do that instead. I wouldn't know how that's done though.