Wddm for hp latop presario cq58 - HP Compaq Presario Cq58 250Sa 15.6-Inch Laptop Intel Celeron B830 1.8GProcessor, 4Gb Ddr3 Ram, 750Gb Sata 5400Rpm Hdd, Intel Graphics, Dvd-Ram, Integrated Webcam, Windows 8

Call Compaq at 800-888-0220
they will mail you one for a small nominal fee.

ccfl screen
all this old are dead or bad. or turn yellow. all do.
all did.
all you can do is turn up the brightness or replace the tubes
CCFL are back lamp tubes. for the SCREEN
CQ58-nnn what, what it the full service tag Partnumber.
ill toss the 50 sided coin and land on cq58-100
the 100 model, is LED and not CCFL lamps
so what OS is running? Windows 7?
i yes, see the users guide on bightness.
read page 26
the magic F3 key.
if the key fails, that means, the drivers loaded on this pc are wrong.
http://h10032.www1.hp.com/ctg/Manual/c03308662

correct drivers are alway here at REAL HP (we are not hp)
im picking w7-64bit now, if not 64bit go back and change that first.

https://support.hp.com/us-en/drivers/selfservice/compaq-presario-cq58-100-notebook-pc-series/5259203

Some monitors, have an options in the driver section, for others, NVIDIA drivers, have options for contrast of brighness.
others laptops have a key convinations, like FN + another key to bright or contrast the color. look your keyboard for those keys,
sometimes has a little sun design

check the bios setting or check it by some external keypad

Remove the screen surround you will see it at the bottom of the screen

look at mfg website for updated driver for WINDOWS 8 for the brand of cd you have

HDMI? Try HP support here: http://h10025.www1.hp.com/ewfrf/wc/product?product=5273500&lc=en&cc=us&dlc=en&task=&lang=en&cc=us

My laptop compaq CQ58 does not start up so it gives me this message selected boot image did not Authenticate. Press <Enter> to continue. If l press continue it switches off, Pliz help wat should l do

Select your opearting system and downlaod from here.
http://h10025.www1.hp.com/ewfrf/wc/softwareCategory?lc=en&dlc=en&cc=us&lang=en&product=3786397&