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Windows 7: Windows no longer recognises my secondary monitor

16 Feb 2012   #1
Jleagle

Windows 7 Ultimate x64
 
 
Windows no longer recognises my secondary monitor

I have a laptop with a secondary monitor plugged in using HDMI. Some time over the last couple of days it has stopped working.

I have just uninstalled and reinstalled the official Intel display drivers and nothing has changed. When I look at the screen res menu and the Intel display menu and neither show that there is another monitor plugged in.

The monitor turns on fine but says no signal and suspends its self. Almost as if the cable isn't plugged in, but it's not been touched.

Any ideas what this could be?
Thanks.


My System SpecsSystem Spec
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16 Feb 2012   #2
DustSailor

Microsoft Windows 8.1 Pro 64-bit
 
 

J, do you have a keyboad shortcut that will allow you to switch between monitor modes, such as extend desktop, duplicate desktop, etc? If you don't, I will tell you how via windows.
Right click your desktop and select "screen resolution". Do 2 monitors show up? Click "Detect". Click "Connect to a projector" and select the option you want.

Hope this helps
My System SpecsSystem Spec
16 Feb 2012   #3
Jleagle

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by DustSailor View Post
J, do you have a keyboad shortcut that will allow you to switch between monitor modes, such as extend desktop, duplicate desktop, etc?
Right click your desktop and select "screen resolution". Do 2 monitors show up? Click "Detect".

Hope this helps
I have that keyboard function button but it doesn't seem to do anything.
When I click Detect, it says "Another display not detected".
My System SpecsSystem Spec
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16 Feb 2012   #4
DustSailor

Microsoft Windows 8.1 Pro 64-bit
 
 

I edited my original post, re-read it once more and let me know if it doesn't work. Make sure you have all windows updates installed!

Test the monitor on another computer if you can to make sure it works
My System SpecsSystem Spec
16 Feb 2012   #5
Jleagle

Windows 7 Ultimate x64
 
 

After clicking connect to a projetor the screen went black for a bit and looked like it was going to work. Now i have two screens showing on the screen page. One is called "Mobile PC Display" and the other is "Display device on: VGA" - But i have nothing plugged into the VGA output, only the HDMI output. My monitor still wont come out from suspended mode.
My System SpecsSystem Spec
16 Feb 2012   #6
DustSailor

Microsoft Windows 8.1 Pro 64-bit
 
 

try changing the screen resolution on your laptop. try updating the graphics card's driver. If you let me know what computer you have, I could link you to the correct driver.

*Edit You already updated the display driver

Other than this, I am out of ideas
My System SpecsSystem Spec
16 Feb 2012   #7
Jleagle

Windows 7 Ultimate x64
 
 

Its a Packard Bell EasyNote TS13-HR.

The first thing i did was remove the drivers using device manager and reinstall them from the Parkard Bell website. Changing the res doesn't take the monitor out of suspension either..
My System SpecsSystem Spec
16 Feb 2012   #8
DustSailor

Microsoft Windows 8.1 Pro 64-bit
 
 

You might try uninstalling the driver again with Revo Uninstaller Free using advanced mode (create restore point!), then installing the new driver. I went to the website and it lists AMD, Nvidia and Intel VGA. Are you sure you are downloading the right one?
My System SpecsSystem Spec
16 Feb 2012   #9
Jleagle

Windows 7 Ultimate x64
 
 

They offer a tool which told me that mine is Intel, how else would I know? I'll give Revo a go
My System SpecsSystem Spec
16 Feb 2012   #10
DustSailor

Microsoft Windows 8.1 Pro 64-bit
 
 

that should be good. other than that, I don't really know what you could try.

Test the monitor on another computer to make sure it works, and see if you can test a different monitor on the laptop to see if a different monitor will work. Sometimes monitors don't work with certain hardware.

Do you know if you used to be able to connect to this particular monitor, or if you were ever able to connect to a monitor? with the laptop?
My System SpecsSystem Spec
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 Windows no longer recognises my secondary monitor




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