I have a Dell Inspiron 9300 laptop and the display started to go so I replaced it. The replacement screen did not come with an inverter so I used my existing one.
The screen works great except that the brightness control settings are reversed. In the BIOS there is a setting for the brightness from 1 to 8 with 1 being the dimmest and 8 being the brightest. With the replacement screen 1 is the brightest and 8 is the dimmest.
Since the brightness control tools (Dell Quickset) is set up for 8 being the brightest all the controls are backwards. So for example, the brightness now gets turned up when running on batteries and turned down when running on A/C. I can work around this by manually setting the brightness in reverse and remembering that the "brightness up" button now actually dims the display, but I'm wondering if there is a fix for this.
Apparently the replacement screen is expecting the opposite from what the BIOS is providing. Is there a way to tell the BIOS (or Dell Quickset) that bright is dim and dim is bright?