wow it is in the manual. a COMPAQ./
USA answers only.
for sure. just read it;. and ever doing so , see Fn+F4
i guess CCFL lamps bad and you never heard of the flash light trick.
in dim room , the flash light shows all data on screen is good
that means CCFL ***** as all do even only 5 years old
get i3 2010 or newer PC. i3 up
HP Compaq HSTNN-105C, hp deleted their rotten manual ,ugh !
well if you looked at the hot keys Fn, the one with CRT on it is it.
means external.
if the OS was upgraded by you and HP said no support for that
then the driver for the HOT key is now dead. drivers must be there.
the whole hot key panel or 1/2 of it is born dead.
HTSNN-105C,,, BOGUS pc
IS NOT THAT THE DOCKING STATION MODE. WOW I YES
SO THERE IS NO ANSWER, LEARN TO READ THE BOTTOM OF HE PC NOT THE DOCKING STATION ! PLEASE.,
FOR REAL MODEL AND REAL PRODUCT NUMBER OF LAPTOP
I GUESS (
DEEP DEEP GOOGLED) IS
pc NC6120 , 2005 NEW..
??????????????????
ON MY hp ELITE BOOK THE FN+f4 WORKS EVEN IN BIOS, EVEN NO hdd/SDD THERE AT ALL.
YES.
OK PAGE 82
JUST FOR YOU
http://h10032.www1.hp.com/ctg/Manual/c00471864.pdf
THE FLASH LIGHT TEST IS SUPER EASY, NO MAGIC THERE
HERE IT IS
CAN FAIL 1/2 A SCREEN OR THE WHOLE CCLF SET DEAD.
THEY ALL NOW.
IT'S HISTORY
https://www.pcdied.com/monitors_and_screens/flash-light-trick.html#flashlighttest
ONLY NOS OR HANGERQUEENS STILL WORK.