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Solution: UG894, page 18 "Initializing Tcl Scripts" shows how to create and modify the file Vivado_init.tcl which can be used to set additional global parameters. Add the following line to the Vivado_init.tcl file:set_param drc.maxThreads 1
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source.. See HDMI input/output may behave incorrectly on ZCU102 board with ES2 silicon
Some designs may exhibit incorrect behavior when HDMI is used as the input and/or output. For the output, one possible behavior is that the display monitor does not show a picture, and remains black. For the input, one possible behavior is that even though a source is connected to the HDMI input, the system will not recognize this.