The
pnozz is a color frame buffer with graphics acceleration, embedded in the Tadpole SPARCbook 3GS, 3GX, 3TX, and 3XP laptops. It is based on the Weitek Power9100 video processor and an IBM RGB525 RAMDAC.
If the
tctrl(4) device is also configured, the
pnozz will be powered down when the lid of the laptop is closed or the screen is blanked.