Currently my Syncmaster 920NW not showing any VGA out signal until its warming up for nearly 1 minute. this issue normally happens after the monitor turn off for few hours..
First I thought this might be a issue with my VGA or Motherboard, then I tested monitor "Self-Test Feature Check" by removing my LCD from my VGA. then it didn't show the "Check Signal Cable" signal. usually this issue will fix after it LCD warms up (nearly 1 minute). And I m not currently having any other LCD issues while using my PC .