My Compaq Presario V2665US notebook display cuts in and out, and will come on only after playing with the switch that shuts off the display when the lid is closed. I replaced the motherboard and the problem is only slightly better. When an external monitor is connected it works fine. Any information will be appreciated!
BIOS does the screen fail in BIOS< no OS running?
power on hit ESC, F10 or what it told you to hit for 11 years.
does BIOS work
that button top left is the standby sleep switch .
if bad , no sure what will happen, but something wrong will.
the aCID TEST IS BIOS.
works on demand all the time or not.
LAMPS:
the back lamp is dead, CCFL
all do, on all old screens 2010 and older
the magic year is 2010 as that year LED phased in.
see? use flash light see, that data there? do you'?
no sure what button you are pressing?
an 11 year old Laptop 2006, so CCFL is there
test those.
for sure use a flashlight.(test)
and see if there is data if see that, the CCFL tubes dead, there inverter is dead, or the power to it or out of it is cut.
here is close manual for free.
https://www.manualslib.com/manual/30176/Compaq-Presario-V2605tn.html
SOURCE: Compaq Presario 2500 PC NoteBook
they is a fn key and a video like symbol on the top keys press that
SOURCE: compaq presario c700 laptop
log on to http://tinyurl.com/6zhtl9
you will get option to choose your system model
Choose your software/driver language:
Select operating system
then you will get list of drivers
go for graphic drivers
download and install them
SOURCE: need compaq presario C700 display drivers
Hi!
Go to this website and just follow the instructions and you should be able to download the drivers for you system.
http://h18000.www1.hp.com/cpq_support.html
Hope this helps. :)
SOURCE: Compaq Presario F500 Monitor Problem
http://h10025.www1.hp.com/ewfrf/wc/document?lc=en&cc=us&docname=c01480071&dlc=en
This might fix your problem. There is a problem sith the bios on select F500 models. Yours might fall in that category.
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Update: I took apart the display and checked for anything loose. Nothing in the display, wiring, etc. appeared to have any effect on the problem. And I can see that the display doesn't actually cut out, it goes dark but is still faintly visible, until I jiggle the close-lid turn-off button. Sometimes, like now, once it works it works until I turn it off, even if I jiggle the button again. I can press it all the way and turn the display off and it still comes back on. Thank you.
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