start of by connecting an external monitor and see if that displays properly. If so you know it is either your scren or the connection to it. The DV6 series has had issues with overheating the GPU which could be an issues with yours. You would have to disassemble that laptop and clean it of all dust etc. Preferably repalce the heatsink etc. All of your symptoms could be originating from overheating etc. you can use this guide [guide|23013] to work on it or download the service and maintenance manual [http://www.hp.com/ctg/Manual/c01860375.pdf|from here]
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start of by connecting an external monitor and see if that displays properly. If so you know it is either your scren or the connection to it. The DV6 series has had issues with overheating the GPU which could be an issues with yours. You would have to disassemble that laptop and clean it of all dust etc. Preferably replace the heatsink etc. All of your symptoms could be originating from overheating etc. you can use this guide [guide|23013] to work on it or download the service and maintenance manual [http://www.hp.com/ctg/Manual/c01860375.pdf|from here]
'''++@seanny++'''
start of by connecting an external monitor and see if that displays properly. If so you know it is either your scren or the connection to it. The DV6 series has had issues with overheating the GPU which could be an issues with yours. You would have to disassemble that laptop and clean it of all dust etc. Preferably repalce the heatsink etc. All of your symptoms could be originating from overheating etc. you can use this guide [guide|23013] to work on it or download the service and maintenance manual [http://www.hp.com/ctg/Manual/c01860375.pdf|from here]