New linux kernel (5.10) DISPMANX error

  • So I am trying to build hyperion.ng on Libreelec(matrix) and RaspiOS. either way it fails with hyperiond DISPMANXGRAB : <ERROR> Snapshot failed: -1 This happens no matter what OS as long as it is this new kernel. Does anyone know what I can do to fix this? I should say this is a pi4


    Side Note: This Kernel is the support for HDR so I want it. I do not want to downgrade kernel. I have been waiting for 4k HDR support for so long.

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    Einmal editiert, zuletzt von Aesopin ()

  • This is auto uncommented, but yes I did make sure this was done. see below


    [pi4]

    # Enable DRM VC4 V3D driver on top of the dispmanx display stack

    dtoverlay=vc4-fkms-v3d

    max_framebuffers=2

  • If I launch hyperion-dispmanx and watch log, it displays this


    hyperion-dispmanx DISP : <INFO> Display opened with resolution: 4x1053481272


    even if I input --width and --height as 100

    maybe this can help. full log below




    hyperion-dispmanx:

    Version : 2.0.0-alpha.9 ((HEAD detached at 83338dc3) (Paulchen Panther-ca50487e/83338dc3-1605733041))

    build time: Nov 18 2020 22:00:17

    2021-04-08T04:13:12.813 hyperion-dispmanx DISP : <INFO> Display opened with resolution: 4x1053481272

    2021-04-08T04:13:13.780 hyperion-dispmanx FLAT : <INFO> Connecting to Hyperion: My ip is listed here

    2021-04-08T04:13:13.877 hyperion-dispmanx DISP : <ERROR> Snapshot failed: -1

    2021-04-08T04:13:13.877 hyperion-dispmanx FLAT : <INFO> Connected to Hyperion: my ip is listed here

    2021-04-08T04:13:13.971 hyperion-dispmanx DISP : <ERROR> Snapshot failed: -1

    2021-04-08T04:13:34.062 hyperion-dispmanx DISP : <ERROR> Previous line repeats 200 times

    2021-04-08T04:13:54.162 hyperion-dispmanx DISP : <ERROR> Previous line repeats 200 times


    edit: This specific log is on libreelec, which admittedly is really hard to get dtoverlay and frambuffer settings to work

    <Insert cool, inspiring, original signature here>

    Einmal editiert, zuletzt von Aesopin ()

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