caps lock and num lock lights are blinking, screen black (13701 Views)
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Honor Student
gopre77
Posts: 3
Registered: ‎04-28-2011
Message 1 of 7 (13,701 Views)

caps lock and num lock lights are blinking, screen black

I have an HP Pavilion dv4 laptop. I turned on my computer and all of the lights turned on, but the screen remained black. I powered it off but it did the same thing. The caps lock and number lock lights are blinking. It is fully charged. When I plugged it into the charger, the charging light didn't turn on.
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DavidPK
Posts: 29,381
Registered: ‎09-24-2010
Message 2 of 7 (13,656 Views)

Re: caps lock and num lock lights are blinking, screen black

Hi,

 

See if you can match the pattern of the blinking LEDs to the table below.

 

Capture.PNG

 

Regards,

 

DP-K

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Microsoft MVP - Microsoft Windows Expert - Consumer

Honor Student
gopre77
Posts: 3
Registered: ‎04-28-2011
Message 3 of 7 (13,631 Views)

Re: caps lock and num lock lights are blinking, screen black

Thank you for the chart. It blinks four times so the graphics controller is not functional. How would I go about fixing it? If fixing it is even possible.

Thanks again for the help, I really appreciate it.
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DavidPK
Posts: 29,381
Registered: ‎09-24-2010
Message 4 of 7 (13,630 Views)

Re: caps lock and num lock lights are blinking, screen black

Hi,

 

This guy has a good reputation for fixing this type of issue - although I don't see a mention of your particular Model range, it may well be worth sending an enquiry.

 

http://cgi.ebay.com/HP-DV2000-DV6000-DV9000-TX1000-Laptop-No-Video-REPAIR-/260674058980?pt=LH_Defaul...

 

Hope you get it sorted.

 

All the best,

 

DP-K

---------------------------------------------------------------------------

****Click the White Kudos star to say thanks****
****Please mark Accept As Solution if it solves your problem****
****I don't work for HP****


Microsoft MVP - Microsoft Windows Expert - Consumer

Student
natoar23
Posts: 1
Registered: ‎10-30-2012
Message 5 of 7 (9,384 Views)

Re: caps lock and num lock lights are blinking, screen black

I have an indecipherable pattern here that is ever changing (seemingly) 

This is a DV4. Likely not going to fix, but if its something that does not involve buying and replacing the MOBO wouldnt mind getting back to factory spec and selling.

 

Honor Student
jasontram
Posts: 2
Registered: ‎12-05-2012
Message 6 of 7 (8,828 Views)

Re: caps lock and num lock lights are blinking, screen black

So I get 2 blinks, then a single blink that repeats every 2 seconds or so... so is that a BIOS/CPU problem and requires a motherboard replacement?

Honor Student
StrunkPC
Posts: 2
Registered: ‎01-29-2014
Message 7 of 7 (845 Views)

Re: caps lock and num lock lights are blinking, screen black

I have a DV4...i just replaced the motherboard and i am getting the same thing again? every 4 seconds the caps and num lock light flash one time.  What could it be?

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