[BUG] Cannot read data from OAK-D Lite "Couldn't read data from stream: 'cama' (X_LINK_ERROR)" #1231
Description
Describe the bug
The device connects and is detected properly in various computers but always returns error "Couldn't read data from stream: 'cama' (X_LINK_ERROR)" when reading camera channels.
Minimal Reproducible Example
Running depthai cam_test producess this issue. Observed also when using the API examples and the depthai-viewer.
Expected behavior
The camera streams should return some data.
Pipeline Graph
Not relevant
Attach system log
depthai cam_test -d 18443010A122600E00 -raw
DepthAI version: 2.30.0.0
DepthAI path: /home/kau-humble/.local/lib/python3.10/site-packages/depthai.cpython-310-x86_64-linux-gnu.so
Enabled cameras:
cama : color
camb : mono
camc : mono
CAM: cama
CAM: camb
CAM: camc
[18443010A122600E00] [1.1] [0.902] [MonoCamera(9)] [error] OV7251 only supports THE_480_P/THE_400_P resolutions, defaulting to THE_480_P
[18443010A122600E00] [1.1] [0.903] [MonoCamera(6)] [error] OV7251 only supports THE_480_P/THE_400_P resolutions, defaulting to THE_480_P
Connected cameras:
-socket CAM_A : IMX214 4208 x 3120 focus:auto - COLOR
-socket CAM_B : OV7251 640 x 480 focus:fixed - MONO
-socket CAM_C : OV7251 640 x 480 focus:fixed - MONO
USB speed: SUPER
IR drivers: []
[]
Cam: cama camb camc [host | capture timestamp]
FPS: 0.00| 0.00 0.00| 0.00 0.00| 0.00 Communication exception - possible device error/misconfiguration. Original message 'Couldn't read data from stream: 'cama' (X_LINK_ERROR)'
Exiting cleanly
[2025-04-28 11:17:26.405] [depthai] [error] Device with id 18443010A122600E00 has crashed. Crash dump logs are stored in: /home/kau-humble/.cache/depthai/crashdumps/c16b75cc8a0d6dc6eaaadf24713db00a1f84948c/crash_dump.json - please report to developers.Additional context
The camera was part of a Turtlebot 4 Lite package. The issue happens consistently both on the onboard Raspberry Pi and a desktop computer.