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Windows 7 "Duplicate" function not working

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flspy Posts 1 Registration date Monday 23 July 2012 Status Member Last seen 23 July 2012 - 23 Jul 2012 à 14:20
flspy357 Posts 1 Registration date Wednesday 10 April 2013 Status Member Last seen 10 April 2013 - 10 Apr 2013 à 17:18
Hello,

I have a Dell Precision M4600 Windows 7 PC with an HDMI port that I connect to a Samsung HDTV running 1080p.

I can't use the "Duplicate" function. I can use "Extend" and "Projector Only" with no problems.
So I can view web pages, movies, etc. I just can't view them on both my Laptop Screen and my HDTV at the same time. It is especially odd the "Extend" is working.

Any suggestions?

Related:

2 responses

Réponse 1 / 2
Jean-François Pillou Posts 19261 Registration date Monday 15 February 1999 Status Webmaster Last seen 16 February 2023  
23 Jul 2012 à 15:57
Hi, What's you graphics card ?

According to Dell, it could be either AMD or NVIDIA : https://www.dell.com/en-us/work/shop?showMessage=1
Flspy
23 Jul 2012 à 17:13
Nvidia
Jean-François Pillou Posts 19261 Registration date Monday 15 February 1999 Status Webmaster Last seen 16 February 2023  
24 Jul 2012 à 12:19
Are you using the latest drivers from DELL ? http://www.dell.com/support/drivers/us/en/19/DriverDetails/DriverFileFormats?driverID=90NCK&FileId=2964784034&productCode=precision-m4600&urlProductCode=False
Réponse 2 / 2
flspy357 Posts 1 Registration date Wednesday 10 April 2013 Status Member Last seen 10 April 2013
10 Apr 2013 à 17:18
I was finally able to fix the issue. I updated the Nvidia driver. And it sounds like I have the same setup as you. Samsung HDTV, M4600 with the 20o0M Quadro Nvidia card.

The update for the Nvidia board was dated March 2013. But you MUST download it from Nvidia- the Dell driver updater does NOT find it! Good one Dell!

So much for Dell telling people it wasn't possible.

Incidentally, I ran a VGA cable with an integrated audio cable and it cloned the desktop with no problems at all. I just wanted an HDMI for the higher resolution and integrated sound.