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Windows 7: Invalid Format when laptop connected to HDMI TV

18 Feb 2014   #1

Windows 7 Pro x64
 
 
Invalid Format when laptop connected to HDMI TV

I messed up display settings for when I attach a TV via HDMI to my laptop. I set the system to display only on the TV (OK, not a totally stupid idea) and then picked a resolution the TV doesn't support (that was TOTALLY stupid!) When I disconnect the TV, laptop display works as normal. As soon as I connect the TV, laptop screen blanks and TV goes to Invalid Format. I have tried to change display settings through the control panel with the TV disconnected, but as soon as I plug in the TV, it goes back to the bad resolution on the TV and no laptop display.

Is this stored in the registry somewhere? I want to reset the flag telling the system to display only on 2nd display.

Please help

My System SpecsSystem Spec
.

19 Feb 2014   #2

Microsoft Community Contributor Award Recipient

Windows 8.1 Pro with Media Center
 
 

Hi OldWraith, welcome to the Seven Forums.

This should work:
  • Connect the TV, don't mind the Invalid Format warning
  • Press WIN + P to open Display Switch dialog. You don't see it as it's on the non-working TV display but trust me, it's there:

    (Screenshot from our tutorial Display - Change Main Display)
  • Press Right Arrow > Press Enter to change from Display 2 only to Display 1 only
  • Now you should have the desktop on laptop's display, you can change your display settings as you wish
Kari
My System SpecsSystem Spec
Reply

 Invalid Format when laptop connected to HDMI TV




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