Test for [PATCH v7 0/3] Add support for the Sony IMX681 camera sensor

From: German Pablo Lindo

Date: Sat Sep 26 2026 - 05:28:42 EST


For this test im using every component and program used to its latest version available in the stable chanel (the only exception is the kernel, wich is 7.3-rc4): mesa 3:26.2.3-1 libcamera 0.7.2-4.1

After applying the necesarry patch that deletes the line "const struct v4l2_subdev_client_info *ci,", the kernel compiled correctly whith the patch applyed

I made a thorough investigation of the camera and came accross the following problems that affect the camera using the CPU or GPU
1) The first startup uf the camera is somewhat slow, it starts from a grey image and then slowly starts to recover the color of the room
2) The camera is horizontally mirrored in qcam and Firefox but not in Gnome Snapshot ¿maybe the camera has a mecanism that Gnome Snapshot uses for the correct horientation?
3) There seems to exist a bug in wich, if there is an object that moves fast in the capture zone (like for example, a hand or a person), blue and yellow lines appear in the area in wich the object moves. This problem does not only affect the front camera (IMX681), but also the rear camera (OV13858). This issue is present both in GPU and CPU mode, but the error seems more prominent if the object exits and reappears in the capture zone and while the camera is starting up in the first use, This error is also visible if the GPU is used and if you put an objet close to the camera (for example, a white sheet of paper) ¿Maybe is caused by the ligth the camera recieves?

The GPU debayer is still broken but i do not have the knowledge or time to identify the root cause, make a solution, create the report and send it to the corresponding place

Tested-by: German Pablo Lindo <germanpapulindez@xxxxxxxxx>