Hello!

I'm using a Toshiba Satellite R15-S822, with Ubuntu 8.04 on account.
Things are going okay with learning how to get it to work properly, but I am having a problem with the display darkening at odd times. It can occur whether I am typing or leaving it idle, at unpredictable times (I've checked with a stopwatch on some occasions). It isn't an instance of me leaving the system idle, and having the power management client take over (I've also checked that), and the only way to get the screen back to its original brightness is to reboot the system -- to have it start over again. Can anyone offer any suggestions as to what could be going on, and how to resolve?

Thanks in advance!