10-15-2011 02:31 PM
Hello there! As most of folk I've got a problem.
I have a HP Pavilion dv6420en laptop designed for vista which was running windows 7 for quite a while.
All was good until I reinstalled windows 7 today. It booted up properly and the display was working all good when after like 5 minutes the colors suddenly got messed up. I ran windows driver update, downloaded the newest drivers from NVIDIA webside, tried using vista drivers from HP website in compatibility mode with no success. I also reinstalled windows twice after that but that didn't help either. The weirdest part is that the colors are messed up from the POST screen. I hope it's a problem with nvidia drivers and not the graphics card.. I also tried doing a screenshot but when I opened the file on my other laptop the colors showed up just fine.
any help would be appreciated!
P.S. attached a pic of what I'm dealing with.
10-15-2011 02:40 PM
If you're seeing a display issue (colors) in the BIOS or during the POST process then it's most likely a hardware failure. You might first try updating the BIOS. Try connecting an external monitor to see if the colors look normal on it. If the colors look normal with the external monitor then it's the LCD or LCD cable that's experiencing a problem. If the problem occurs on the external monitor then it's the graphics processor (GPU).
10-16-2011 02:18 AM
can this issue be connected with the fact that I flashed BIOS as well before the colors messed up?
I've just tried installing a few earlier versions of BIOS but that doesn't help. I don't recall what was the default BIOS version installed though..
Also the BIOS I have on the laptop doesn't have any video settings I could change.. I thought there ought to be something like "use ega/vga" setting but there isn't one..
08-05-2015 03:43 AM
last night i left my computer (windows 7) on update but when i woke up and turned on my computer i colors are the same as the picture that you have uploaded with your question. if you have got your computer fixed, please tell me the instructions so i can fix mine too.
08-05-2015 04:05 AM
Its a DV6 , 90% of these laptops have problems with GPU failure , these lines are sign that its preety much done , just save your info from HDD and junk this laptop , its not worth repairing.