keyboard--backlighting goes off while i'm typing

[luvtype]

I'm one of those apparently rare people who love the physical keyboard. But I do have one problem, which isn't noticeable in a normally lit room. In a darkened room, you suddenly become aware that the keyboard backlighting goes off if you stop typing. And then it becomes impossible to see the keys to continue typing. The only way is to press a key down, but that means you'll be typing any key and making mistakes that need to be corrected....

This can be quite frustrating, if you're typing a long passage, or if you have a ton of entries to do and no control over ambient lighting.

There must be a way to "wake up" the keyboard and/ or to adjust or prolong the backlighting time of the keyboard.

Much appreciated if anyone knows how to deal with this.

Thanks!