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Display gone mad, is it truly dead?

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22cwa Display
Microsoft Windows 10 (64-bit)

My 22cwa display had a breakdown the other day. It was working fine, then it suddenly started flashing light to dark gray and displaying 2 thin vertical lines, 1 green and one red. A couple of minutes later, it went dark gray and stayed that way. My dilemma is whether or not to pursue repair or give up and start saving for a replacement. Opinions?

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