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hp pavilion all-in-one-pc 24 k0020na
Microsoft Windows 10 (64-bit)

I'm trying to use the HDMI in on the hp pavilion all-in-one-pc 24 k0020na to use the monitor as a TV when the computer is not in use. The HDMI connection from my satellite/terrestrial box is picked up fine, however it is like the display is constantly scanning for another input and dropping the HDMI in, the screen keeps flickering black. I have tried updating the BIOS and the display drivers wondering if that might fix the issue but it has not resolved it. The screen is unwatchable with the constant drop -outs. I have tried a few different HDMI cables to be sure that isn't the issue and also tested the TV box on a tv and it's working fine, so it has to be some sort of problem with the all in on. I have no display issues when it's being used as a pc. Any suggestions or ideas! Current BIOS version is F.20

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