Sreen goes blank for 3-4 sec

My laptop works great except a occaally the screen goes a dark gray for 3-4 seconds, then comes back. Any ideas? Thanks.

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Plug it into an external display, does the problem persist?

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Chosen Solution

Could be the GPU

Graphics chip, OR it cold be cables shorting. There's "known issues" with the solder joints failing over time on these graphic chips. Shimming helps, reflowing the solder is a temporary cure. Damaged cables can be replaced.

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Good Luck,

N.

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