When the RPF DSI touch screen is connected and powered up, the VC4 disables HDMI (unless you use the exceedingly experimental fkms or kms drivers).
It's one or the other with standard firmware driving the display.
Microprocessor, Raspberry Pi & Arduino Hacker
Mainframe database troubleshooter
2012-18: 1B*5, 2B*2, B+, A+, Z, ZW, 3Bs*3, 3B+
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