Pls help to check the err:CHANSEL_NOMATCH when bring-up a gmsl camera

[chenxinhai]

Hello Nvidia team:
Jetpack Version:5.1.1
I want to bring up a gmsl(max96712 + 4x max96705) cam on JESON AGX ORIN, after gmsl init i use below command to preview video:
gst-launch-1.0 v4l2src device=/dev/video1 ! xvimagesink -ev

But i just can view first frame on screen, not continuous video output on screen.

Below is err info of dmesg&trace, Can you help me analyze the reason？

By the way , our camera is YUV format, our config:

    mclk_khz = "24000";
    num_lanes = "4";
    tegra_sinterface = "serial_a";

    vc_id = "3";
    discontinuous_clk = "no";
    dpcm_enable = "false";
    cil_settletime = "0";
    dynamic_pixel_bit_depth = "16";
    csi_pixel_bit_depth = "16";
    mode_type = "yuv";
    pixel_phase = "uyvy";

    active_w = "1280";
    active_h = "720";
    readout_orientation = "0";
    line_length = "1280";
    inherent_gain = "1";
    pix_clk_hz = "300000000";
    serdes_pix_clk_hz = "300000000";

dmesg err info:

[ 9022.200745] tegra-camrtc-capture-vi tegra-capture-vi: corr_err: discarding frame 0, flags: 0, err_data 131072
[ 9022.234078] tegra-camrtc-capture-vi tegra-capture-vi: corr_err: discarding frame 0, flags: 0, err_data 131072
[ 9022.267412] tegra-camrtc-capture-vi tegra-capture-vi: corr_err: discarding frame 0, flags: 0, err_data 131072
[ 9022.300756] tegra-camrtc-capture-vi tegra-capture-vi: corr_err: discarding frame 0, flags: 0, err_data 131072

trace err log:
jetson_agx_orin_2023-08-14_16-29-03.log (526.9 KB)

[JerryChang]

hello chenxinhai,

it’s discarding frame to drop the capture buffers, that’s why you don’t see live preview frames.
according to the tracing logs, there shows CHANSEL_SHORT_FRAME. which usually caused by the coming vertical signaling is less then your active_h configuration.
is there embedded metadata lines? please examine your sensor configurations, thanks

[chenxinhai]

Tks, it is OK!