Screen resolution "Input not supported"

Lordsilone Posted messages 7 Status Member -
Papounet17000 Posted messages 26460 Registration date Status Member Last intervention - 30 Sep 2017 at 14:10

Hello everyone, I have a little problem, my screen only supports a resolution of "1440x900". A friend of mine lent me his, and I increased the resolution to "1920x1080". When I returned it, I forgot to switch the resolution back to that of my screen, so my screen isn’t detecting it and displays "input not supported" on startup. I then took my TV and set the resolution to "1440x900", but that didn't work. I also lowered the resolution even further to "800x600", but that still doesn't work. I don't understand why. I restarted in safe mode, which worked, and I uninstalled my graphics card, but that still doesn't work. Does anyone have a solution to my problem?

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Answer 1 / 3

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exla Posted messages 22532 Status Contributor 3 600

Good evening,

Try performing a system restore in safe mode to a date before the issue occurred.

for Windows 10

https://www.commentcamarche.net/informatique/windows/147-restaurer-windows-avec-les-points-de-restauration/#4-restauration-du_systeme

--
Best regards, exla
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Answer 2 / 3
Lordsilone Posted messages 7 Status Member

Yes, it still doesn't work; however, I don't understand since it works on my TV but not on the computer screen (I've tried with 3 different computer screens and with different resolutions).
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1. Papounet17000 Posted messages 26460 Registration date Status Member Last intervention 9 895
  
  Turn on your PC with your monitor connected.
  
  When you see the message input not supported, unplug the monitor from the power socket for a few seconds and then plug it back in.
  
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2. Lordsilone Posted messages 7 Status Member
  
  What do you mean by electrical socket monitor?
  
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  1. Papounet17000 Posted messages 26460 Registration date Status Member Last intervention 9 895 > Lordsilone Posted messages 7 Status Member
    
    The monitor is the screen.
    
    Of course, if it's a laptop, forget what I said.
    
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3. Lordsilone Posted messages 7 Status Member
  
  It's not working, yet when I start in safe mode, it works.
  
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  1. Papounet17000 Posted messages 26460 Registration date Status Member Last intervention 9 895 > Lordsilone Posted messages 7 Status Member
    
    If you have several video connectors at the back of the PC, I assume the monitor is connected to the graphics card.
    
    Connect it to the motherboard and start the PC.
    
    If you get a display, uninstall the graphics card drivers (anything that mentions the card in Programs and Features) and shut down the PC.
    Reconnect the monitor to the graphics card and start the PC.
    
    Since the graphics drivers have been uninstalled, its configuration has been removed.
    
    You should have display on the graphics card again, and of course, you will need to reinstall the drivers manually.
    
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Answer 3 / 3
Lordsilone Posted messages 7 Status Member

How to connect it to the motherboard?
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1. Papounet17000 Posted messages 26460 Registration date Status Member Last intervention 9 895
  
  On a a PC, there is generally a graphics card + a graphics GPU.
  
  If you have both, that's a good sign.
  If you only have one connector, it means you just have a GPU.
  
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2. Lordsilone Posted messages 7 Status Member
  
  I have a GPU, but I only have one HDMI port.
  
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  1. Papounet17000 Posted messages 26460 Registration date Status Member Last intervention 9 895 > Lordsilone Posted messages 7 Status Member
    
    Just HDMI?
    No DVI or VGA?
    
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3. Lordsilone Posted messages 7 Status Member
  
  Yes, only HDMI.
  
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  1. Papounet17000 Posted messages 26460 Registration date Status Member Last intervention 9 895 > Lordsilone Posted messages 7 Status Member
    
    So you need to start in safe mode and uninstall the graphics drivers.
    Once done, restart the PC.
    
    0

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