I2C bus 7 timeout on AGX under 5.0.2 Jetpack with TX2 interface installed

I am having a problem with I2C bus 7 timeout when I have the TX2 camera interface board installed and two Allied Vision Alvium cameras. With Jetpack 5.0.2 installed and the T2X interface connected I get I2c timeouts when I run sudo i2cdetect -y -r 7. If the board is removed then the scan runs fast and detects only the audio chip at x1A.

0 1 2 3 4 5 6 7 8 9 a b c d e f
00: – – – – – – – – – – – – –
10: – – – – – – – – – – UU – – – – –
20: – – – – – – – – – – – – – – – –
30: – – – – – – – – – – – – – – – –
40: – – – – – – – – – – – – – – – –
50: – – – – – – – – – – – – – – – –
60: – – – – – – – – – – – – – – – –
70: – – – – – – – –

sudo dmesg | grep i2c
[ 3.154170] i2c /dev entries driver
[ 3.157506] tegra-i2c 3160000.i2c: Adding to iommu group 2
[ 3.163343] tegra-i2c c240000.i2c: Adding to iommu group 2
[ 3.168470] tegra-i2c 3180000.i2c: Adding to iommu group 2
[ 3.173825] tegra-i2c 3190000.i2c: Adding to iommu group 2
[ 3.179211] tegra-i2c 31b0000.i2c: Adding to iommu group 2
[ 3.184826] tegra-i2c 31c0000.i2c: Adding to iommu group 2
[ 3.190225] tegra-i2c c250000.i2c: Adding to iommu group 2
[ 6.998998] tegra-i2c 31e0000.i2c: Adding to iommu group 2

Maybe need to probe the signal to check.

Are you referring to an electrical probe test of the I2C bus? If so, pardon my question, but I am new to this platform; where should I probe with my scope?

It look like the camera board hold the I2C lines. You can check the I2C lines to see if it has output waveform. Check your camera board schematic and probe the I2C pins.