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Resolved Question

Unable to Mirror Dell XPS 15Z's display on a HD TV

by Oct 5, 2011 7:05PM PDT
I have a Dell XPS 15Z laptop. I connected its HDMI port to the HDMI4 port of my Samsung Series 7 LED TV. Following are what happened. The first time I connected them, it worked perfectly. I was able to mirror the laptop's display on the TV and play the sound also through it. It continued to work for 9 days. During this period the connection was changed from the LED TV to a slightly older LCD TV and there too it worked perfectly. On the 10th day morning when I turned on the system, I found that the TV was displaying the desktop and the laptop's screen was only showing the background of the desktop. I tried to troubleshoot the problem and after several attempts with the "PERSONALIZATION" menu and the "Fn - F1" key combination, I came to understand the following. I am only able to "EXTEND" the laptop's display to the TV. The only options I get in the "Multiple Display" box in the "Personalization" screen are 1. Extend this display, Show Desktop only on 1 and Show Desktop only on 2 (1 being the laptop's display and 2 the TV. There is no option for mirroring (Duplicate)!! When I used the function key sequence and chose "DUPLICATE". I got the same result as before - Desktop on the TV and balnk background on the laptop's display. When I checked the "Personalization" screen, I found that there were three screens shown. 1&2 inside a circle with half portion white and the other half blue on one screen and 3 n the adjacent screen. On dropping the "Screen ID" box down I found 1 was the laptop's display, 2 was a VGA display and 3 was the TV. When I dropped the "Multiple Display" box down I found the following options. Extend displays 1&2, Show desktop on 1&2 only, Show desktop on 3 only. Once again ther was no option to mirror (Duplicate)!! I tried to fiddle with the parameters under the Intel HD video adaptor config screen and found that I couldn't change any parameter there. I performed a system restore to the automatic control point of the last day it worked properly and the result was the same. UNABLE TO MIRROR!!!!!!!!!!!!!!!!! If any of you have had similar experience, please share your observations. Regards, Murrier1

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warali has chosen the best answer to their question. View answer
7 Posts
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Best Answer

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Sounds proper.
by Forum moderator Oct 6, 2011 2:24AM PDT

Many laptops use a resolution that can't be mirrored. I'm not there but did you try setting your screen to a resolution that the HDTV supports?
Bob

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Answer
Solved
by Nov 23, 2011 5:15PM PST

This is quite complicated. An explanation of of why this occurs is this:

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no Display option on NVIDIA control panel
by seattle_mom Feb 10, 2012 8:17AM PST

I am having the same problem and would like to try your solution. However, my Control Panel only offers two areas in the task tree: 3D Settings and Video. Any idea why I can't get to Display? Have checked NVIDIA site with no luck.

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Mirroring
by lordratheon Feb 20, 2012 1:41PM PST

Mirroring is under the Nvidia Control Panel DIsplay Settings if you right click on the desktop. Too bad the HDMI on the XPS15z crashes 24/7... Sad

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HDMI problem
by seattle_mom Feb 21, 2012 3:37AM PST

Hmm, my HDMI actually seems to work fine. But my Nvidia Control Panel is missing a number of options.

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Unable to Duplicate Laptop Display to HDMI output
by tech_fox Mar 13, 2012 12:50AM PDT

Excellent advice and spot on for me. I have a Asus N55SF with a 1600x900 display and dual graphics cards (Intel HD and Nvidia GT555M. I was struggling with this problem for hours. I suspect it is a problem for all laptops with dual graphics cards and HDMI output. The laptop does not have Display port (I presume that is what DP stands for) but does have a VGA socket and HDMI socket. I even attached a monitor to the VGA connector so I had three monitors running (TV plus VGA standalone plus the laptop display) in extended desktop mode but it would only allow me to duplicate the VGA and the laptop displays and only extend to the TV on HDMI.

Thank you for the solution.

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Thank you
by Indrutzu May 4, 2012 10:47PM PDT

You coudn`t have been more helpful .
after upgrading my graphics card driver i spent half of my day to try to mirror the display not to extend it .
The solution was so bloody simple but what can you do Happy)
Thanks a lot again

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