My Compaq Presario laptop cq57 has a totally black screen. I have done a hard reboot that did not work .when I start the pc the power light goes on but the cap lock light does not. there are no beeping noises. I have connected it up to a monitor by a VGA cord but the screen does not appear on the secondary monitor. this problem began when I was using a secondary monitor for a larger screen. the image began to roll and I had several bars of the same image. every thing appeared to be a pink color.i did change a monitor setting in the pc. it was a projector setting.
With the huge battery removed? why not do that FIRST FIRST?
100% black all the time,, not even text here, ever.
not even using a flash light? pointed at the screen,?
but now all screens are dead.
ive no idea at all what is plugged in here, its all over the map.
Laptop screen
VGA screen (has hot key , if not used the port is dead, RTM?)
projector.? huh? (yes, ive used them for years)
did you read the users guide yet, if not why?
you posted anon, 2 times. now? why?
so the PC is bad. (check)
so you are asking how to diagnose a PC with no tools ?
well if you make a BOOT CD, for 10cents and boot to linux live CD
if the screen is dead the the PC is dead. end story
For sure the GPU chip is upset, why we dont know. takes lost of testing and lacking spare parts is many times impossible to cure.
The hard drive has issues or the windows files have been corrupted, remove the hardware and reseat it back in place sometimes this will activate the system, next! use your backup recovery disc if you have one, no change! the hard drive will need to be tested.
SOURCE: Manual for the Compaq presario CQ57-339W/M Notebook PC
Download your manuals here....
http://h10025.www1.hp.com/ewfrf/wc/manualCategory?cc=us&lc=en&dlc=en&document=&product=5173039
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