CB1 with PI 4b : HDMI Out

[Alex Angelino]

Booting the CB1 from the 4.9 Image was a breeze, I even managed to get wifi configured through the system.cfg file. 

HDMI out, on the other hand, has been less than stellar. I'm using an HP27f and the display is at 180 60HZ. 

My MAC is plugged into HDMI1 and the CB1+Pi4b adapter is plugged into HDMI2. On this display I get no display error, on my dell I get an error related to unsupported refresh rate. 

What can I do to change the display setting through either the system.cfg file or from a terminal. 

 

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hdmi_width=1920

hdmi_height=1080

hdmi_mode=60

 

check_interval=30 # 循环检测wifi是否连接,时间 30s

router_ip=8.8.8.8 # 参考 DNS,用于检测网络连接

 

eth=eth0 # 以太网卡设备号

wlan=wlan0 # 无线网卡设备号

 

###########################################

WIFI_SSID="{MySSID}" # wifi名称

WIFI_PASSWD="{MyPassword}" # wifi密码

 

###########################################

WIFI_AP="false" # 是否开启wifi AP模式，默认关闭

WIFI_AP_SSID="rtl8189" # wifi AP模式创建的热点名

WIFI_AP_PASSWD="12345678" # wifi AP模式创建热点的连接密码