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i have this Compaq Presario CQ40 Laptop and when i turned on the machine, it shows no display, it seems no interaction with the monitor. And there's a led that continuously blinking 4 times then pause then 4 times then pause..

any help please..

what would be the problem on my laptop..

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1 Answer

up vote 1 down vote accepted

Something is wrong with your graphics card / subsystem:

HP Support Blank Screen Error Code

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