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Windows 7: New monitor with hdmi giving a fuzzy screen.

02 Jan 2014   #11
Slartybart

x64 (6.3.9600) Win8.1 Pro & soon dual boot x64 (6.1.7601) Win7_SP1 HomePrem
 
 

This is fairly basic information, but read thruogh it to see if there is a nugget that might have been missed: Getting the best display on your monitor - Microsoft Windows Help


My System SpecsSystem Spec
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02 Jan 2014   #12
Slartybart

x64 (6.3.9600) Win8.1 Pro & soon dual boot x64 (6.1.7601) Win7_SP1 HomePrem
 
 

Looked at the manual for L22FED12 just to see how LOGIK described selecting PC on an HDMI port and found:
6 INPUT
Press to select among different input signal sources:
DTV / ATV / SCART / YPbPr / PC / HDMI1 / HDMI2 / AV / DVD / USB.
Use the buttons on the remote control to select the input, and then press the OK button to confirm.

This refers to buttons on the side of the TV, you might also be able to use the remote control to set this, but at least you know there is a button. Set the TV to PC
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02 Jan 2014   #13
Luna TGaP

Windows 7 Home Premium 64bit
 
 

Setting the TV to PC is how you connect to VGA, it might as well just be named VGA. Selecting PC gives a blank screen saying no signal.
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02 Jan 2014   #14
Slartybart

x64 (6.3.9600) Win8.1 Pro & soon dual boot x64 (6.1.7601) Win7_SP1 HomePrem
 
 

I see, my TV has a different setup.

Power everything down
Powerup TV, set to HDMI1 or HDMI2
Power up PC

When you have two monitors connected, how are Multiple Displays configured on the PC?
Control Panel\All Control Panel Items\Display\Screen Resolution
My System SpecsSystem Spec
02 Jan 2014   #15
Luna TGaP

Windows 7 Home Premium 64bit
 
 

Hey again. I have a couple of things to tell you, the answers to your question and something that might interest you. Firstly, here is a screenshot of the two monitor configurations. The recommended resolution for both is 1280 x 720, however they should both be 1980 x 1080, which they are currently set to. My new monitor is the DSG TV and the old one is DSGR.
New monitor with hdmi giving a fuzzy screen.-dual-screens.png
Secondly, I decided to make a spreadsheet to send to you with all of the port to wire to monitor combinations, to help you work out which is the faulty component. However, upon completing the sheet, I saw that there were 2 combinations that would work together. Trying them out, they didn't so I just plugged everything back in to the first combination I tried. What confused me was that the results from the first combination had changed - the new monitor is now working perfectly and the older one is fuzzy. None of the results are repeatable... Good news is that the new monitor now works fine, with or without the old monitor attached, no matter which hdmi cable or which port I use. Bad news is I have no idea why. This leads me to think that it's a software problem and not a hardware problem. I don't know if any of this helps, but I'm just trying to give you as much information as I can.


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02 Jan 2014   #16
Luna TGaP

Windows 7 Home Premium 64bit
 
 

An interesting development - If I unplug both wires then plug both back in, whichever is plugged in first is fuzzy and whichever is plugged in second is crystal clear. This is fully repeatable so I can get one screen to be fuzzy and one to be clear (doesn't matter which one). If only 1 monitor is plugged in, it remains fuzzy. This may change if I restart, but I'll wait until you've made a decision as I enjoy actually having my new monitor working for the time being. xD
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02 Jan 2014   #17
Slartybart

x64 (6.3.9600) Win8.1 Pro & soon dual boot x64 (6.1.7601) Win7_SP1 HomePrem
 
 

Good news and good re-wiring.

Try changing "Extend these displays" to "Show Desktop only on #" where # is your main display.
In your screen shot # = 2, but you've changed things so # = whatever display is identified as your main in screen resoultion.....
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02 Jan 2014   #18
Luna TGaP

Windows 7 Home Premium 64bit
 
 

Not too sure what you mean there, you lost me at 'screen shot # = 2', but by showing the desktop only on #1 (new monitor) it's full res and clear and by showing the desktop only on #2 (old monitor) it's full res and fuzzy.
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02 Jan 2014   #19
Slartybart

x64 (6.3.9600) Win8.1 Pro & soon dual boot x64 (6.1.7601) Win7_SP1 HomePrem
 
 

Post# 15 shows that display 2 is (was) main display. I don't know if display 1 or display 2 is currently your main display since changes have been made.

Please post a new screen shot of Screen Resolution showing both displays (as you did in post# 15)
What I'd like to see is (note the "This is currently your main display" setting)


Attached Images
New monitor with hdmi giving a fuzzy screen.-screen1.png 
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02 Jan 2014   #20
Luna TGaP

Windows 7 Home Premium 64bit
 
 

Ah, I get it now, thanks. Display 2, which is to my left, is my older monitor. Display 1, which is in front of me, is my new and main monitor. I just switched them around so my mouse would move smoothly from one monitor to another. They've changed since post# 15 as I've been fiddling with the wires. I think these are the screenshots you're after (I hope!).
New monitor with hdmi giving a fuzzy screen.-desktop-1-only.png
New monitor with hdmi giving a fuzzy screen.-desktop-2-only.png
I'd like to note that both monitors appear to have a darker display when one of them is disabled, but I'm sure that's nothing an increase in brightness wouldn't fix. Monitor 1 (main / new one) remained clear and monitor 2 (left / old one) remained fuzzy.


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 New monitor with hdmi giving a fuzzy screen.




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