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Official Display • Re: Raspberry Pi 7" Touchscreen Randomly Changing I²C Address

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The I2C-1 was enabled by me.
I have tested it with another raspi 4B same problem. Again only with the Display connected. When its disconnected everything seems normal.

Here is the I2C 10:

Code:

sudo i2cdetect -y 10     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f00:                         -- -- -- -- -- -- -- --10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --30: -- -- -- -- -- -- -- -- UU -- -- -- -- -- -- --40: -- -- -- -- -- UU -- -- -- -- -- -- -- -- -- --50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --70: -- -- -- -- -- -- -- --
This should be normal


Here the config.txt:

Code:

# 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 interfacesdtparam=i2c_arm=on#dtparam=i2s=ondtparam=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 camerascamera_auto_detect=1# Automatically load overlays for detected DSI displaysdisplay_auto_detect=1# Enable DRM VC4 V3D driverdtoverlay=vc4-kms-v3dmax_framebuffers=2# Disable compensation for displays with overscandisable_overscan=0[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 allowsarm_boost=1[all]dtoverlay=w1-gpio#dtoverlay=w1-gpio,gpiopin=4,pullup=0#dtoverlay=w1-gpio,gpiopin=4,pullup=onhdmi_group=2hdm_mode=82

Statistics: Posted by anton.tni — Sun Mar 23, 2025 7:06 pm



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