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09-30-2011 08:37 AM - edited 10-04-2011 12:46 AM
i have problem with my laptop compaq hp pressario cq41 - 224tx
i can't adjust and lower the brightness on my laptop by pressing fn+f7, fn+f8
and there is no brightness slider on the windows mobility center like this picture
i have try to reinstaling quick launch drivers and VGA drivers from the oldes till the newest, but there is still no brightness slider in the windows mobility center, and the button fn+f7, fn+f8 still not work
my laptop monitor is too bright, this make the batteries run out quickly
any suggestion to solve my laptop brightness problem..?
09-30-2011 08:45 AM
You have focused in on the likely issues....it is the video driver and the keyboard hotkey drivers that are likely at fault. What does device manager list for the display adapter? Do you have any exclamation marks or other issues in device manager?
09-30-2011 11:51 AM - edited 10-04-2011 12:45 AM
I have reinstalled the video drivers and HP quick launch drivers that I download from this website
I have tried installing all the drivers vga and quick launch are available from website
but i still have that problem
there is no exclamation mark in device manager on my laptop
do you have any suggest to solve my laptop brightness problem ?
and this is my BIOS
why in my BIOS there is no "Action key mode" menu..?
11-27-2013 09:13 AM
i have same problem with you.
i just reinstall my windows 7 from 32 bit to 64 bit (genuine, of course) and install all driver from hp support web.
and i have problem with brightness control,
my intel vga driver cant instal...
i have HP compaq 41 224tx