Second Monitor/Projector blank

November 15, 2011 at 13:03:16
Specs: Windows 7, i5 520M 2.4GHz/4gigs
Hi there,
I can't get secondary monitors or projectors to show anything when I plug them into my laptop. Windows can see the other peripherals, and I can edit their settings, play with their position, resolution etc. and if I set the displays to extended, I can drag windows off my laptop screen over to the nothingness that is the other monitor :(.
When I plug a projector into the vga port, my laptop automatically changes it's resolution to match the projector, but the it never projects, same with lower resolution monitors.
If I unplug the monitors/projectors, they say signal lost/ no signal.

I tried updating my display drivers to the latest drivers from Nvidia, the latest display drivers from Toshiba (which is older than the one from Nvidia) rebooting, updating BIOS, scrubbing the BIOS for any sign of display stuff, messing with Windows 7 resolution settings, Nvidia control panel settings, I don't know what else to do, I'm hoping it's not a hardware problem since the laptop isn't even a year old.

Please help.

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November 15, 2011 at 13:08:54
Regardless of which driver version is newer, you should ALWAYS use the driver supplied by the laptop manufacturer, NOT from the device manufacturer.

Why? - because drivers are custom-made for laptops to match the custom-made hardware and only the laptop maker has them. These are therefore the only ones that will work properly. That's why version numbers are different.

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November 16, 2011 at 05:44:02
Hi, thanks for the reply. I know that it's recommended that I only use the drivers from Toshiba, but I figured that since the latest driver from them is the one that came with the laptop, and if it was a driver issue then hopefully getting a more recent update from Nvidia would have fixed it. It wasn't a driver issue though since the problem persisted, and I have since reverted back to the Toshiba issued driver.

Problem still exists.

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