RPI4 - sporadic "black"-screen

  • Hello,

    yesterday I built an image for RPI4 from act. master on github.

    While booting or navigate in menus I saw sporadic "black screens" (also if watching video and fast-forward e.g. 4x) for ~ 2...3 seconds.

    Did some testing today and found that reverting this merge-request helps: linux (RPi): update to 5.10.46-69b899c #5475

    Checking the log while having this "black-screen" shows this message(s)

    and

    Code
    2021-07-07 12:01:53.102 T:1178  WARNING <general>: OutputPicture - timeout waiting for buffer
  • please find the log here: http://ix.io/3sdk

    Please fix your power supply issues first:

    Code
    RPi throttled=0x50000
    ...
    Feb 02 16:29:48.403857 LibreELEC kernel: Under-voltage detected! (0x00050005)
    Jul 07 14:41:09.639718 LibreELEC-rpi kernel: Under-voltage detected! (0x00050000)
    Jul 07 14:45:16.053017 LibreELEC-rpi kernel: Under-voltage detected! (0x00050005)

    so long,

    Hias

  • Thank you for the hint! Just checked my USB connector at the RPI and saw it was broken =O.

    Soldered a new one and until now there was no black screen - will continue testing and will check what changed in linux that may increase RPI current (peaks) :/