Display is  5" mini monitor with hdmi, connected to Raspberry PI  4.

/boot/config.txt
 

dmi_force_hotplug=1 
config_hdmi_boost=4 
# uncomment to force a console size. By default it will be display's size minus 
# overscan. 
#framebuffer_width=1024 
#framebuffer_height=600 

#hdmi_ignore_edid=0xa5000080 
hdmi_cvt=1024 600 60 2 0 0 0 

# uncomment to force a specific HDMI mode (this will force VGA) 
hdmi_group=2 
hdmi_mode=88 
dtoverlay=vc4-kms-v3d 

[pi4] 
arm_boost=1 

[all] 
# enable serial console 
enable_uart=1 
dtparam=i2c_arm=on