Laptop freezes when I plug in HDMI to monitor

When I plug a HDMI cable to my laptop, the screen freezes and forms a black box around the screen. The only thing I can see is my screen background image. Cannot do anything, the system is totally frozen. When I disconnect it everything works fine again. What should I do? I use a HP ENVY DV7-7250us with WIN7 (64 bit) installed thanks! B

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It sounds as if there is a problem with the TV\Monitor. I see that you have not specified which other inputs has the device. This would help. Call you a monitor. The rest of us use LCD screens. It is only 20 inches by your description. I wouldn't use it if it would not accept a video signal with a resolution higher than 1024 x 768.

Creating identical threads is frowned upon here. I'll ask a moderator to remove one on the same subject.

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