Ken B 0 Posted December 13, 2012 Report Share Posted December 13, 2012 My second monitor show "No signal" and shuts down while booting up. I have a ATI radeon HD 4870 card. It was working fine this morning, but when I started up the computer this afternoon it will not work. Any ideas or suggestions would be appreciated. I switched the two monitor cables so I know it is not a problem with the monitor. Link to post Share on other sites
jaydor 345 Posted December 13, 2012 Report Share Posted December 13, 2012 Try reseting the eyefinity as a new set up, then select your main screen from the Catalyst control centre, left or right screen.. Also check that your second screen is showing in screen resolution on your main start screen desktop.. Link to post Share on other sites
Ken B 0 Posted December 14, 2012 Author Report Share Posted December 14, 2012 I updated my video drivers and now my monitor is working. Link to post Share on other sites
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