Systems, apparatuses, and methods for improved power management techniques. An apparatus may include a display control unit, a communication fabric, a memory controller, a memory cache, and a memory. When the memory is power-gated, and the display control unit needs to fetch pixel data, the display control unit may send a wake-up signal to the memory before sending a wake-up signal to the communication fabric. The display control unit may then issue the pixel fetch request later. Additionally, if the display control unit determines that the pixel data has a high probability of being cached, then the display control unit may not send a wake-up signal to the memory, and the display control unit may issue the request earlier. More generally, the display control unit may send wake-up signals to multiple components in a manner which accounts for the wake-up latency of each component.