Hi @nengyu. Thanks for your reply. Yes, I agree that the i2c addressing looks correct with the i2c address showing up as 0x56 as is correct for the new DSI driver chip (as per my paste of the i2cdetect printout) rather than 0x45 for the older chip.
However, I can’t spot anything wrong in the config.txt file either (please see my paste below). It looks to me like all the recent additional scripts have been called, including:
dtoverlay=reTerminal,tp_rotate=1
What would really help me would be a guide or script(s) that would reset my system to factory new condition. Something in my setup is apparently not getting reset when I flash the OS followed by installing the overlays per my original post. But I don’t have enough experience with Linux or the Pi to know what else to do.
Cheers, Stephen
# For more options and information see
# http://rpf.io/configtxt
# Some settings may impact device functionality. See link above for details
# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1
# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
#overscan_left=16
#overscan_right=16
#overscan_top=16
#overscan_bottom=16
# uncomment to force a console size. By default it will be display's size minus
# overscan.
#framebuffer_width=1280
#framebuffer_height=720
# 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=1
# 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
# uncomment for composite PAL
#sdtv_mode=2
#uncomment to overclock the arm. 700 MHz is the default.
#arm_freq=800
# Uncomment some or all of these to enable the optional hardware interfaces
dtparam=i2c_arm=on
#dtparam=i2s=on
dtparam=spi=on
# Uncomment this to enable infrared communication.
#dtoverlay=gpio-ir,gpio_pin=17
#dtoverlay=gpio-ir-tx,gpio_pin=18
# Additional overlays and parameters are documented /boot/overlays/README
# Enable audio (loads snd_bcm2835)
dtparam=audio=on
# Automatically load overlays for detected cameras
camera_auto_detect=1
# Automatically load overlays for detected DSI displays
display_auto_detect=1
# Enable DRM VC4 V3D driver
dtoverlay=vc4-kms-v3d
max_framebuffers=2
# Disable compensation for displays with overscan
disable_overscan=1
[cm4]
# Enable host mode on the 2711 built-in XHCI USB controller.
# This line should be removed if the legacy DWC2 controller is required
# (e.g. for USB device mode) or if USB support is not required.
otg_mode=1
[all]
[pi4]
# Run as fast as firmware / board allows
arm_boost=1
[all]
enable_uart=1
dtoverlay=dwc2,dr_mode=host
dtparam=ant2
disable_splash=1
ignore_lcd=1
dtoverlay=vc4-kms-v3d-pi4
dtoverlay=i2c3,pins_4_5
gpio=13=pu
dtoverlay=reTerminal,tp_rotate=1
dtoverlay=reTerminal-bridge
dtoverlay=w1-gpio