I have my phone set to never sleep when plugged in, and this is working. With this active, I have my display set to timeout in 15 seconds. My problem is that the screen's brightness is cut severely after 6 seconds. (I can change the display timeout to increase the time before dim, but since there seems to be only one timeout setting for plugged in vs. not, this isn't what I want to do.)

Anyone know of a way around this? Did I explain it well?