Using the default aircraft the L on the keyboard is supposed to toggle all lights on all lights off. When I use it only the exterior lighting goes off and on. I get a flash in the cockpit but the lights don't stay on.  Is this a bug or am I missing something. I tried changing the key assignment also deleting it and assigning it to a button on the yoke but no luck..any ideas? 

Seems to me that some of the default aircraft feature interior lights that are always "on".  It's been a long time since I've messed with any of the default aircraft, so I could be mistaken.

It's the same story on every plane I've tried. L is supposed to be all lights off or on shift+L is for panel lights which doesn't work either.

I think you've identified why "L" is not turning on your cockpit lights.  "shift+L" should turn on the cockpit illumination. If its not, something is wrong.  You've probably already checked the keyboard assignments in the configuration, and since you see a momentary flash, the key must be trying to turn them on. Are you running DX9 or DX10?  If DX10, have you installed Steve Parsons' v3.2.2 shader pack? 

DX9 with absolutely zero addons.

I went through every AC and checked so far only the 747 works. If the AC has a switch in the cockpit the lights still won't come on even by using that switch.

Every other cockpit is dark.

Ok, well that's something at least. Somethings different between your 747 and other aircraft.

 

On my stock Cessna 172 in the

"Microsoft Games\Microsoft Flight Simulator X\SimObjects\Airplanes\C172\panel" folder I have the following under [window00]

gauge21=Cessna172!Panel_Lights_Switch,                  342,418, 30, 34

 

Do you have a corresponding entry? 

 

For comparison, my 747 panel.cfg has this under [window04]

gauge08=Boeing747-400!Panel Lights Switch, 357, 1

 

The actual gauge info should be in .dll files in the "Gauges" folder. Mine are all dated 9/20/2007 around 5:10 PM or so.  I've never messed inside the dll files and I suspect you have not either.  Just check they are there.

 

Also, any chance that you have a joystick or throttle controller button programmed to "Shift+L" that is conflicting?

I deleted all other assignments except for the keyboard. I'll check the files tomorrow.

 

Thanks for the info.