Is there a way to increase screen brightness on a Toshiba 460CDT as there does not seem to be a separate control?
I am not sure what model my toshiba PC is, but this will probably work fo yours. hold Dow the FN key ( bottom left on keyboard) while pressing F7 to make the screen brighter, F6 to make it dimmer.
hope this helps,
A random PC geek
If they are all not working, I would suspect a blown fuse, or they are just turned off. There is a rheostat used to control the brightness of the instrument lights. If it is turned too far the lights will go off. Find the control and turn it. Sometimes it is the reset button for the odometer and sometimes it is a separate control. Look in your owner's manual for the location.
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If the instrument lights come on but the brightness isn't working you probably have a damaged light switch. They usually aren't too expensive, but on the other hand it depends on the vehicle and the parts distributor. Also if the brightness is controlled by a switch other than the headlight switch, then this rheostat may be bad and need replacing.