树莓派4直接上电,试过诸多参数,HDMI在我的显示器上(LG27M35)无法显示。
但是改电脑USB3.0供电,HDMI工作正常。
相关参数如下:
/boot/config.txt
# uncomment if hdmi display is not detected and composite is being output hdmi_force_hotplug=1 # uncomment to force a specific HDMI mode (this will force VGA) hdmi_group=1 hdmi_mode=16 # uncomment to force a HDMI mode rather than DVI. This can make audio work in # DMT (computer monitor) modes hdmi_drive=2 # uncomment to increase signal to HDMI, if you have interference, blanking, or # no display config_hdmi_boost=4