no photos of white screen presented or posted.
is it white in a dark room???????????
DV5-1125nr (9 years old (first made date) RTC COIN cell time? sure. page 59 tells you how.
lacking any photos , it be impossible to fix this talking in text box.
as they say ,seeing is believing, what you call white I call black.
white on sunny beach, or black in dark room, can be the same.
always post what a pC does in the dark, its best.
all text seen , all logos seen (hp or compaq)
any boot screens, any log in screens.
and if the "hit F10 key to enter HP setup" is missing on said screen as seen now for 9 years running.
if that text is missing,
remove the big battery in rear of LP,they short, so get it out now
and first., do that first. always,,,
then run on AC power,
do the HP long reset? (battery out, ac pack pulled
push power button 10 to 30second, not use the ac pack only
it can run on AC forever, end ever , no problems.
do so now.
got that that 9 year old text now? in the dark, ok?
The F10 is BIOS hot key, power on and quickly hammer F10
bingo for BIOS. see that? see those screens, those are first.
if BIOS is dead, it can not boot any OS made.
BIOS does the booting job, see?
here is your support page. at HP, Fixya is NOT HP. so....
this OLD PC, is CCFL back lighted, all are.
2010 year is the magic hear we went to LED backlamps.
but your PC is 2008, see?
CCFL do these things
dim, go yellow, do dead, go intermittent and blink(strobes)
if dim, AS I SUSPECT , then its that. (brightness set to max)
CCFL tubes are 99% caused
the HV inverter is 1%
here is the tube sets.
here is the inverter (high voltage inverter for HV CCFL tubes)
if you tell what it does in the dark , all things
good or bad,.
answer get 10x smaller, or in fact , dead accurate.
why not just get it fixed by a tech.
all old laptops do this, EVERY SINGLE ONE.