LCD Monitor blackens out appox 5 min after start-up. changing graphics card, re-installing driver, did not help Tags: LCD Monitor Graphics Cards Windows 7 Last response: November 5, 2013 6:29 AM in Windows 7 Share giorgosp November 5, 2013 3:58:34 AM Any proposals for corrective action ? More about : lcd monitor blackens appox min start changing graphics card installing driver Reply to giorgosp Phillip Corcoran a b U Graphics card a b $ Windows 7 November 5, 2013 6:29:37 AM Try to get hold of a different monitor for testing purposes. If the new/different monitor works okay without blacking out, your original monitor is faulty. Reply to Phillip Corcoran Ask the community Post an answer Read discussions in other Windows 7 categories Configuration Customization Drivers Security Laptops !