TCL Roku Model: 48FS3700
TCL Roku Update: July 18, 2018
PS4 Model Number: CUH-1215A
PS4 System Software: 5.55 (last updated May 17, 2018)
After a recent Roku update my TCL Roku TV won't display PS4 output, it either says "No Signal", gets stuck on "Just a sec..." or simply shows a black screen. I tried connecting to different HDMI inputs, but the behavior is the same. I tried switching between different HDMI cables, but the behavior is the same. I turned off HDCP and HDMI Link on the PS4, but the behavior is the same. This only happens with the PS4, my Nintendo Switch for example displays just fine.
HOWEVER, if I press the physical "Reset" button on the back of the TV right above the HDMI inputs, it will correctly output the PS4 video display as usual.
Thinking it must be an issue with the Roku TV itself, I performed a factory reset on the Roku TV. This fixed the issue, the PS4 display now displays normally like before. This leads me to believe that the display issue is related to the recent Roku TV update on July 18. I thought this might be useful information for the Roku developers to know, and for anyone else who might encounter this issue.