Interfacing (DSI, CSI, I2C, etc.) • DSI connector is not listed by modetest, help to decipher vcdbg log msg

Code:

005475.848: arasan: arasan_emmc_open005626.418: brfs: File read: /mfs/sd/config.txt005627.309: brfs: File read: 2074 bytes005705.643: brfs: File read: /mfs/sd/config.txt006826.749: gpioman: gpioman_get_pin_num: pin DISPLAY_DSI_PORT not defined006829.250: *** Restart logging006829.271: brfs: File read: 2074 bytes006855.122: hdmi: HDMI:hdmi_get_state is deprecated, use hdmi_get_display_state instead006855.138: HDMI0: hdmi_pixel_encoding: 300000000006855.149: HDMI1: hdmi_pixel_encoding: 300000000006860.097: dtb_file 'bcm2711-rpi-4-b.dtb'006865.534: brfs: File read: /mfs/sd/bcm2711-rpi-4-b.dtb006865.548: Loading 'bcm2711-rpi-4-b.dtb' to 0x100 size 0xbfc2006878.272: brfs: File read: 49090 bytes006889.157: brfs: File read: /mfs/sd/overlays/overlay_map.dtb006951.827: brfs: File read: 1523 bytes006954.335: brfs: File read: /mfs/sd/config.txt006954.813: dtparam: audio=on006964.672: brfs: File read: 2074 bytes006978.380: brfs: File read: /mfs/sd/overlays/vc4-kms-v3d-pi4.dtbo007040.719: Loaded overlay 'vc4-kms-v3d-pi4'007429.179: brfs: File read: 3831 bytes007431.623: brfs: File read: /mfs/sd/cmdline.txt007431.706: Read command line from file 'cmdline.txt':007431.736: 'console=serial0,115200 console=tty1 root=PARTUUID=acdbd562-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait quiet splash plymouth.ignore-serial-consoles'008673.862: brfs: File read: 166 bytes009990.478: brfs: File read: /mfs/sd/kernel7l.img009990.519: Loading 'kernel7l.img' to 0x8000 size 0x662688009990.568: Device tree loaded to 0x2eff3a00 (size 0xc5e4)009998.033: gpioman: gpioman_get_pin_num: pin SDCARD_CONTROL_POWER not defined015062.777: vchiq_core: vchiq_init_state: slot_zero = 0xded80000, is_master = 1015068.570: TV service:host side not connected, dropping notification 0x00000002, 0x00000002, 0x00000052018583.660: camsubs: Looking for camera 0: i2c_port = 0, led gpio = -1, power enable gpio = 133018884.408: camsubs: Camera not found018884.569: camsubs: Looking for camera 0: i2c_port = 0, led gpio = -1, power enable gpio = 133019185.281: camsubs: Camera not found019185.345: camsubs: Looking for camera 0: i2c_port = 0, led gpio = -1, power enable gpio = 133019186.051: camsubs: Camera not found019186.111: camsubs: Looking for camera 0: i2c_port = 0, led gpio = -1, power enable gpio = 133019186.818: camsubs: Camera not found019186.878: camsubs: Looking for camera 0: i2c_port = 0, led gpio = -1, power enable gpio = 133019187.072: camsubs: Camera not found

Code:

Connectors:idencoderstatusnamesize (mm)modesencoders3231connectedHDMI-A-1       510x2901131  modes:name refresh (Hz) hdisp hss hse htot vdisp vss vse vtot)  1920x1080 60 1920 2008 2052 2200 1080 1084 1089 1125 148500 flags: phsync, pvsync; type: preferred, userdef, driver  1600x1200 60 1600 1664 1856 2160 1200 1201 1204 1250 162000 flags: phsync, pvsync; type: driver  1680x1050 60 1680 1728 1760 1840 1050 1053 1059 1080 119000 flags: phsync, nvsync; type: driver  1280x1024 60 1280 1328 1440 1688 1024 1025 1028 1066 108000 flags: phsync, pvsync; type: driver  1440x900 60 1440 1488 1520 1600 900 903 909 926 88750 flags: phsync, nvsync; type: driver  1280x960 60 1280 1376 1488 1800 960 961 964 1000 108000 flags: phsync, pvsync; type: driver  1280x720 60 1280 1390 1430 1650 720 725 730 750 74250 flags: phsync, pvsync; type: driver  1024x768 60 1024 1048 1184 1344 768 771 777 806 65000 flags: nhsync, nvsync; type: driver  800x600 60 800 840 968 1056 600 601 605 628 40000 flags: phsync, pvsync; type: driver  640x480 60 640 656 752 800 480 490 492 525 25175 flags: nhsync, nvsync; type: driver  720x400 70 720 738 846 900 400 412 414 449 28320 flags: nhsync, pvsync; type: driver  props:1 EDID:flags: immutable blobblobs:value:00ffffffffffff0022f08e28010101013213010380331d782eee95a3544c99260f5054a1080081c0814081809500a940b300d1c00101023a801871382d40582c4500fe1f1100001e000000fd00324c185e11000a202020202020000000fc00485020323331300a2020202020000000ff0033435139353032354d570a2020002b2 DPMS:flags: enumenums: On=0 Standby=1 Suspend=2 Off=3value: 35 link-status:flags: enumenums: Good=0 Bad=1value: 06 non-desktop:flags: immutable rangevalues: 0 1value: 04 TILE:flags: immutable blobblobs:value:20 CRTC_ID:flags: objectvalue: 7433 left margin:flags: rangevalues: 0 100value: 034 right margin:flags: rangevalues: 0 100value: 035 top margin:flags: rangevalues: 0 100value: 036 bottom margin:flags: rangevalues: 0 100value: 037 max bpc:flags: rangevalues: 8 12value: 87 HDR_OUTPUT_METADATA:flags: blobblobs:value:390disconnectedHDMI-A-2       0x0038  props:1 EDID:flags: immutable blobblobs:value:2 DPMS:flags: enumenums: On=0 Standby=1 Suspend=2 Off=3value: 05 link-status:flags: enumenums: Good=0 Bad=1value: 06 non-desktop:flags: immutable rangevalues: 0 1value: 04 TILE:flags: immutable blobblobs:value:20 CRTC_ID:flags: objectvalue: 033 left margin:flags: rangevalues: 0 100value: 034 right margin:flags: rangevalues: 0 100value: 035 top margin:flags: rangevalues: 0 100value: 036 bottom margin:flags: rangevalues: 0 100value: 040 max bpc:flags: rangevalues: 8 12value: 87 HDR_OUTPUT_METADATA:flags: blobblobs:value:

Code:

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 this if your display has a black border of unused pixels visible# and your display can output without overscan#disable_overscan=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[pi4]# Enable DRM VC4 V3D driver on top of the dispmanx display stack#dtoverlay=vc4-fkms-v3ddtoverlay=vc4-kms-v3d-pi4#dtoverlay=vc4-kms-dsi-waveshare-panel,7_0_inchC,i2c1max_framebuffers=2dtdebug=on[all]#dtoverlay=vc4-fkms-v3dstart_x=1gpu_mem=128#dtparam=dsi_enable=1        # turns the DSI host on#dtparam=dsi_simple=1        # uses a very basic video mode (800×480 @ 60 Hz)#DSI1 Use#dtoverlay=vc4-kms-dsi-7inch