Ok, I have this information now. It looks like there might be a problem with I2C ?
Confirming it’s 32-bit
sv@raspberrypi:~ $ uptime
08:59:22 up 2 min, 2 users, load average: 1.22, 0.58, 0.23
sv@raspberrypi:~ $ uname -na
Linux raspberrypi 6.1.21-v7l+ #1642 SMP Mon Apr 3 17:22:30 BST 2023 armv7l GNU/Linux
Checking kernel modules
sv@raspberrypi:~ $ lsmod | grep mipi_dsi
mipi_dsi 28672 0
drm 544768 9 drm_dma_helper,mipi_dsi,v3d,vc4,drm_shmem_helper,drm_display_helper,gpu_sched,drm_kms_helper
backlight 20480 2 mipi_dsi,drm
checking startup messages
sv@raspberrypi:~ $ dmesg | grep mipi_dsi
[ 0.056371] platform fe700000.dsi: Fixed dependency cycle(s) with /soc/i2c@7e804000/mipi_dsi@45
[ 8.155181] mipi_dsi: Initialize kernel module
[ 8.155201] mipi_dsi: (i2c_md_init) Add I2C driver
[ 8.155317] mipi_dsi: Probe I2C driver
[ 8.155328] mipi_dsi: (i2c_md_probe) Start
[ 8.170878] mipi_dsi 1-0045: I2C read id failed: -5
[ 8.171120] mipi_dsi: (i2c_md_init) Register MIPI-DSI driver
Checking boot flags
sv@raspberrypi:~ $ cat /boot/config.txt
# 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
dtoverlay=reTerminal-bridge
arm_64bit=0
disable_splash=1
ignore_lcd=1
dtoverlay=vc4-kms-v3d-pi4
dtoverlay=i2c3,pins_4_5
gpio=13=pu
dtoverlay=reTerminal,tp_rotate=1
I appreciate your assistance !