4K Display Issue

Mickael9g -  
MPMP10 Posted messages 47256 Registration date   Status Member Last intervention   -
Hello,

I just bought a Thomson 50ua6406 screen. In TV mode, the image is normal, but when I switch to my PC, I can't get a clean display. The grays are pink, and the resizing of objects/desktop changes with each restart.
I've tried several operations through Windows and Nvidia assistants, but the image is still "dirty" (contrast, too bright or not bright enough, washed-out colors...).
I also changed my resolutions just in case, but nothing works.
I had a 102cm Samsung LCD screen before, and there were no issues.
I think I might cry...
My PC configuration: i5 4670k; gtx980ti; 16g of ram. The entire setup is less than a year old and the GPU is new.
My PC is connected via a standard HDMI cable, not in the MHL port.
Is there any software that can manage this or any operations that I haven't done?
Thanks for your help!

2 answers

glandu Posted messages 25506 Registration date   Status Contributor Last intervention   4 090
 
Hello, what can I say... in principle, the definition needs to be aligned at the lowest level, meaning your PC screen. I’m copying a recap of all the options. Good luck.

Screen transfer from PC to video projector or TV

Turn on the TV or projector, the video connection will be VGA or S-video, composite (yellow RCA) or HDMI, depending on the case, and you need to add an audio connection, 2 RCA, optical, etc... except for HDMI.
You can use an adapter from SCART to S-video, composite and audio on older TVs.
There are several ways:
Start with this simple method for recent PCs on Windows 7 and 8: Press the "Windows" key + "P" key, and choose your option "PC only, projector (or TV only)" and the duplicate function, which is not relevant here.
Or another method:

On your PC, right-click on the desktop
Screen resolution
Click on display the desktop only on 1 or 2
Apply
The image will then project onto the projection screen and the computer screen will go black.
Click on the projection screen or TV by moving the mouse to "keep changes"
OK

Do the reverse maneuver to retrieve the image on the computer.
Or turn off the projector, the image will automatically return (after a few seconds) to the PC monitor.

For audio, except through HDMI connection, we go through the output of the PC's sound card to feed the TV or an amplifier.
You need to align the display resolutions to the maximum of the least capable of the two screens.

Or explained this way:
1. VGA and DVI ports
2. To open Control Panel, click on the Start button, then on Control Panel.
3. In the search box, type projector, then click on Connect to a projector.
(To use a keyboard shortcut instead of Control Panel, press the Windows key + P).
4. Select how you want to display the Desktop:
PC only (this displays your Desktop only on your computer screen);
Duplicate (this displays your Desktop on your computer screen and on a projector);
Extend (this extends your Desktop from your computer screen to a projector);
Projector only (this displays your Desktop only on a projector).
For a TV screen, it’s the same method.

--
"Donkeys change their minds, but fools do not."
Remember to mark your message as "resolved" if that is the case.
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letotof Posted messages 2149 Status Member 482
 
Hi

what graphics card is it, can you give the syp reference

thanks
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Mickael9g
 
It's a Zotac GTX 980ti amp 6g ddr5.
I think my HDMI cable is too old, I bought it a few years ago...
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letotof Posted messages 2149 Status Member 482
 
Hi

yes, change the cable, get a high-end Real Cable

Premium www.son-video.com/Rayons/Cable-HDMI/Real-Cable-HDE-Snow.html
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MPMP10 Posted messages 47256 Registration date   Status Member Last intervention   18 929 > feuGrejoy Posted messages 1 Status Member
 

Hello,

 Display issue 4k Closed Mickael9g - Dec 16, 2015 at 11:51 

He must have had time to try various settings since December 2015!

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Mickael9g
 
Here is the cable replaced and still the same problem... And it's impossible to configure 3840x2160 at 60Hz. I'm limited to 30Hz.
However, I can adjust the colors a bit better, but the result is still disappointing compared to my old screen.
Also, the NVIDIA setup assistant shows a native resolution of 1080p. I don't know if that's normal.
Thanks for your posts!
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