I am using PI4 with raspbian buster. While I am playing videos on VLC the screen sometimes blink. The blinking interval is random. Is it normal or is there a problem that is needed to be fixed?

  • Is Raspbian fully updated? What file are you playing?
    – CoderMike
    Oct 12, 2019 at 19:47
  • Raspberry pi is fully upgraded. I am playing a movie. An mp4 file Oct 12, 2019 at 19:49
  • What happens if you use omxplayer?
    – CoderMike
    Oct 12, 2019 at 20:27
  • Never used it. Don't know. VLC is easy to use. So I am searching for a solution Oct 12, 2019 at 20:31
  • 1
    Maybe a screen recording would help find a solution.
    – Botspot
    Oct 14, 2019 at 22:46

2 Answers 2


I also use VLC on the latest Buster and RPi4. I remember getting some screen blinking when I used a crappy HDMI cable which I have since replaced. One easy test you can do is changing the screen resolution to a lower one, e.g. 1280x720. You can do this e.g. by editing /boot/config.txt, running raspi-config (those two require a reboot), by going to Application Menu > Preferences, or using command line by running sudo tvservice -e "CEA 4". If the blinking goes away or is substantially reduced, your problem is likely in the cable, and you should get a shorter one if possible, and from a shop those quality you trust.


Sometimes, Screen flickering is attributed due to low power supply. Please check at the top right of your screen you will see a yellow thunder icon if that is the case.


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