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Troubleshooting black screen issues on HP Notebooks: Click here to view the instructions!

‎11-26-2018 07:07 AM

HP Recommended
Product: Compaq Presario CQ40-330TU
Operating System: Microsoft Windows 7 (32-bit)

My compaq presario CQ40 notebook pc resolution is decreased. And the max. resolution has set lower than original so the display is not on the whole screen and there is a black strip on the right vertically.

Yet display is complete but smaller than original. I have tried reinstalling graphics driver but no improvement.

Please help what may be the problem. Can damaged display cable be a reason?

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