Using an Imx6q custom board based on the sabresd board, and a 4.1.15_1.2.0_ga based kernel, with some patches to accept a grayscale sensor, I run a gstreamer-imx pipeline with a downscale of my 1280x1024 grayscale images to 640x512, and I have noticed artifacts in the result : a repetitive pattern in the first two lines of the result image. This happens for all images, except the full black ones, and whether I use 0 or IPU_PIX_FMT_GREY as format in the ipu_task for the ioctl. The downscale I ask is just a division of width and height by a factor 2. I have attached a full-scale image and the corresponding downscaled image. Is that a known bug/feature of the IC or is it caused by some bad registers configuration when asking for the conversion ?