Solved Why won't my monitor recongnize input from my computer?

October 21, 2016 at 08:20:40
Specs: Windows 10 64-bit
I have a Dell Inspiron 15R laptop and a Dell monitor. The monitor is VGA, connected by a converter to the HDMI port on the laptop. It worked for a couple hours after I bought the monitor, and then stopped when I bumped the cable a bit. The monitor-adapter setup works fine with another computer, and my laptop connects fine via HDMI to my TV. The laptop definitely recognizes the monitor; I can move windows into the space where it would show up on the 2nd monitor in extend mode. But, the monitor says that it is not detecting input.

I have tried updating and rolling back the driver, forgetting the device, and adjusting settings on both the laptop and the monitor.

Anyone know what I can do to fix this?


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✔ Best Answer
October 23, 2016 at 22:40:20
Most likely the converter is being powered by the HDMI side (your portable). Possible the 5V supply on the HDMI is damaged because of the (High?) current draw by the converter, or some disable-function on the laptop prevents it from sending power to the HMDI port.

http://obrazki.elektroda.pl/7647823...



#1
October 21, 2016 at 09:42:48
This may sound strange but try shutting down the laptop, remove the battery and power cord, press the power button a couple of times to drain out any remaining current. After a minute or so replace the battery and turn it on. It may not work BUT it has been known to solve some very unusual problems and there is really no negative side of doing it except a couple of minutes it takes. This tip is repeated here from another regular here. You never know unless you try it.

You have to be a little bit crazy to keep you from going insane.


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#2
October 21, 2016 at 14:44:21
"stopped when I bumped the cable a bit"

That sort of thing usually points to an intermittent hardware fault somewhere near to where you moved something. Could be the cable or a plug and socket issue.

Always pop back and let us know the outcome - thanks


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#3
October 23, 2016 at 18:16:33
@Fingers I tried it, and unfortunately it didn't work.
@Derek I'm looking into that, but I wouldn't expect it to work with any device if that were the issue, and it definitely works with some devices.

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#4
October 23, 2016 at 22:40:20
✔ Best Answer
Most likely the converter is being powered by the HDMI side (your portable). Possible the 5V supply on the HDMI is damaged because of the (High?) current draw by the converter, or some disable-function on the laptop prevents it from sending power to the HMDI port.

http://obrazki.elektroda.pl/7647823...


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