I connected mi PI4B to the monitor with HDMI-MicroHDMI adapter, and when I power de PI device, the monitor says "HDMI Inactive" and no signal. The screen was in black. The Red led of the PI is alway On and the red one is blinking and later(around 3-4minutes) turn Off. I tried to install Raspbian in other SD, and modify the "config.txt" In the config I tried to uncommment:
hdmi_safe=1 hdmi_force_hotplug=1 hdmi_group=1 hdmi_mode=16 hdmi_drive=2 config_hdmi_boost=4
But it didnt works, someone could help me please?
My monitor is: HP24fh (1920*1080): https://www.amazon.es/gp/product/B07HH85ZFD/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1
And the adapter Hdmi to MicroHdmi: https://www.amazon.es/gp/product/B07K21HSQX/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1
I used Raspberry PI4B (kit of LABSTS): https://www.amazon.es/gp/product/B07XLK59Z3/ref=ppx_yo_dt_b_asin_title_o06_s00?ie=UTF8&psc=1