I am experiencing this exact issue with XG1v4 and Vizio P65-E1. If the TV has been off for 10-12 hours, there is no signal received after turning on the tv. Energy save is turned off. Issue only occurs at 2160p. The fastest way to fix it is to unplug the HDMI from the back of the XG1v4, and plug back in. That generally fixes the problem. Stupid question, how do I send someone a direct message?
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