Solved Dual monitor problem - 2nd monitor is blank

Susan now go up to the little red triangle in the right hand corner and post problem solved. Glad we could help!
 

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Windows 7 Ultimate 64i7 3770k OC'd 4.6 @ 1.17v, also FX 8120 & i5 ...32 gb G.Skill Sniper DDR3 10-12-12-31 @ 2133XFX Radeon 7870 2GB DDR5
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A blend of brains, brawn and dumb luck.
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just as they are plugged in next to each other

it was said about which ports, and seetings asin for e.g. nvidia control pannel settings.
 

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Windows 7 Ultimate N 64-bitAMD Black Edition - AMD Phenom X4 2.5 GHz Pro...8GB DDR2 800MHZ BRANDEDPalti NVIDIA GeForce GTX 460
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Windows 7 Ultimate 64-bit
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AMD Black Edition - AMD Phenom X4 2.5 GHz Processor
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Bio Star
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ok, here's the scoop. it's not your monitors. i have this same problem. i have two monitors hooked up to my laptop. i watch netflix on one and play skyrim on the other...........when they decide to work. it's not a problem with the drivers because it works and i've used it with no problems. however, sometimes it just randomly decides to not show anything on the second monitor. the operating system tells me that it is showing up on the second screen, but my eyes tell me otherwise. multiple reboots sometimes work, sometimes dont. i do believe that this is just one of those random Windows bugs that they are so notorious for. :D if anyone finds a workaround or a fix, please lemme know. i'm troubleshooting it as we speak
 

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windows 7 64 bitintel i54GBATI mobility Radeon HD 5650
Computer Manufacturer/Model Number
acer aspire 5740G
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windows 7 64 bit
CPU
intel i5
Memory
4GB
Graphics Card(s)
ATI mobility Radeon HD 5650
Monitor(s) Displays
720p HDTV + Acer AL1716
ok, here's the scoop. it's not your monitors. i have this same problem. i have two monitors hooked up to my laptop. i watch netflix on one and play skyrim on the other...........when they decide to work. it's not a problem with the drivers because it works and i've used it with no problems. however, sometimes it just randomly decides to not show anything on the second monitor. the operating system tells me that it is showing up on the second screen, but my eyes tell me otherwise. multiple reboots sometimes work, sometimes dont. i do believe that this is just one of those random Windows bugs that they are so notorious for. :D if anyone finds a workaround or a fix, please lemme know. i'm troubleshooting it as we speak

Just try to turn off DCR function of the monitor if it has it. It worked for mine!
 

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Windows 7 Pro x64i5-3210M8GBHD4000
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Laptop
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Sony Vaio SVS15123CXS
OS
Windows 7 Pro x64
CPU
i5-3210M
Motherboard
Sony Mobo
Memory
8GB
Graphics Card(s)
HD4000
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MyDigital SSD 256GB, Hitachi 1TB
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Avast free
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Chrome
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