Hp flat screen faulty centre

my hp monitor has a problem, it comes on and goes of when you connect the signal cable into it
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  1. Welcome to Tom's Forum! :)

    If the GPU is not sending a signal then yes it will go off. Other reasons can include disabling or not using the correct PCIe initialization in the BIOS. Typically, using a discrete GPU it's best to choose 'PEG' device as the default PCIe initialization and the monitor needs to be connected to the GPU, not the onboard VGA/DVI port, and if the GPU uses auxiliary power then the PSU must supply adequate power (PCIe power).
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