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I'm trying to get video on my tv from the computer. Nothing works. I have tried fn f5 to switch from computer screen to tv, no good. Is there a switch that turns off external video or fn keys?

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What computer (make/model) are you using, what OS and what cable between the devices?

Make sure that the port that you are using to connect the computer and the TV is enabled. This may be in the BIOS.

Make sure the input is set to PC (for VGA) or HDMI on the TV. For the HP laptop running Windows 7 Home Premium, I can enter the Display settings by right clicking on the desktop (anywhere there are no running programs or icons). Then choose Graphics Properties. In that window, I can choose the external monitor, dual monitors or the laptop's screen. Then click Apply and confirm the new display options (on the appropriate monitor).

For my desktop, with Win7 Pro, I start with the old monitor is plugged in (power and data) and turned on as well as the TV (DVI to HDMI) and start the computer. Then by right clicking on the display, choose Screen Resolution and then select the TV and the resolution for that. (Since the tv and the old CRT monitor have different screen resolutions, I do not use the dual monitor mode.) Since I know both graphics adapters are active, if I unplugged the data cable for the old monitor, it would probably find the TV without this step.

Please note that some TVs with HDMI input do not accept a computer signal on the HDMI port. In that case, you would need to use the VGA port or a converter.

I hope this helps. I'll provide additional help if you give specifics about your TV and computer.

Cindy Wells

Posted on Mar 24, 2011


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