Methods, systems, and devices are provided that reduce image artifacts, particularly during system power up from a sleep mode. In an example, a method includes receiving a system enable signal at a receiver, a bias generator and a delay circuit; ramping up, by the bias generator in response to the system enable signal, a bias current using a quick turn-on circuit of the bias generator; turning off the quick turn-on circuit at a first time after receiving the system enable signal; and transmitting, by the delay circuit to a control input of a buffer coupled to an output of the receiver, a buffer enable signal at a second time after receiving the system enable signal to enable the buffer, which is in a disabled state before receiving the buffer enable signal. The second time occurs after the first time.