My benq joybook r45 won't boot. the battery is fine.. the screen will go brighter/dimmer.. and attaching an lcd doesn't work.. what is wrong with this machine?

On Battery or AC? Open Control Panel, select Power Options, set display dim. Use this procedure: http://windows.about.com/od/customizingwindows/ss/set_power_options.htm

Here is a link to the drivers you need:

http://notebook.driversdown.com/notebook-drivers/s_1382_1.shtml

Hi,

Here are some steps which you can try.

- Plug in an external monitor and check if you get the same colors on the external display.
- If you get the same display, install an updated driver for your video card. But if still the same, your video card needs to be replacement (if dedicated) or your motherboard needs to be replaced (if integrated).
- If you external display works fine then the problem is narrowed down to the LCD. Either the LCD inverter or the LCD cable is failing and needs to be checked/replaced.

Hope this helps.

F6 normally operates external screen or off the control panel if windows is on

Im not sure but for in some rare circumstances,especially perhaps Benq(they produce niche items as well ) there might be a load up procedure for the operating system--Consult or download theoperators manual for your model--with this manufacturer its too early to say you have no operating system but it also might be the case.

Your display is either disconnected or loose at the motherboard or the screen needs to be replaced.

check the display on vga mioniter if there check for screen ccfl nd lcd invertor
if not replace the ram with other one if it not work its problem of vga chip

reload the os.

I would recommend you to bring it back and get a new one, if its till under warranty. You cannot fix the problem on the panel buttons it looks something to do with the components in the circuit bord.

it sounds like the mother board is fried take the ram out one at a time and see if it boots.