I have a Compaq Presario F500 with a very dim screen. I initially tried to change the inverter - no joy I then ordered a 2nd user (working) screen unit and tried a different screen and different screen cable - no joy. The laptop works connected to my television.
Thanks for that fruit bat. I have tried the screen brightness with no joy. I have also tried the lid actuator with no success. The laptop did not have the hp heath check installed, I have since downloaded it and installed the graphic driver - no joy. There were no BIOS updates listed.
Is there an option for increasing/decreasing the screen brightness in the Nvidia GeForce go 6100 settings ? Also, if it's using Vista , have a look at control panel/power options , then click on Change plan settings , you can alter screen brightness fro mains and battery from there .
This laptop has a magnetic switch, the magnet being inside of the bezel near the hinges. I have tried removing the bezel and disconnecting the power board which I believe the switch is part of - still no success.