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Suddenly all my screen captures look like green and purple junk. See the image below.

Running Ubuntu Linux 21.04 with KDE. (I don't know if I'm running Wayland or X-Server but it's been working great for over a year until just now.)

  • VLC version 3.0.12.
  • My last good confirmed Screenshot was from 2021-06-20.
  • My GPU is Radeon RX 580 Series, OpenGL 4.6.
  • Monitors are 4k LG.

Anyone know what's wrong?

green purple junk


Update: It seemed that updating for a later version of VLC did solve the issue. This now work. Overall I updated my whole system to a later version of Ubuntu also, so if any driver updates happened under the hood, those might have been relevant as well.

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  • 2
    Are you able to upgrade to VLC version 3.0.14 ? I was not certain from the VLC article. Can you try the Chromium browser?
    – John
    Jul 7, 2021 at 23:24
  • 2
    @John I tried using the latest version of VLC from SNAP and it seemed to capture alright. I will update when that version reaches the Ubuntu repositories. It may just be a version glitch with my system for some reason. If the problem persists, then it is probably a configuration issue. I wonder where SNAP program user-configurations are stored?
    – C.D.
    Jul 21, 2021 at 5:32
  • 1
    It seemed that updating for a later version of VLC did solve the issue. Overall I updated my whole system to a later version of Ubuntu also, so if any driver updates happened under the hood, those might have been relevant as well.
    – C.D.
    Jul 24, 2022 at 0:03
  • This is now an older question. Did my answer solve the issue for you?
    – John
    Jul 24, 2022 at 1:16

2 Answers 2

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What worked for me was to set “Preferences > Input / Codecs > Hardware-accelerated decoding” to Disabled.

Source:

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  • Does not help on Ubuntu 20.04 with VLC 3.0.9.2 Jan 8 at 12:23
  • 2
    I'm sorry to hear that. My environment is Ubuntu 22.04.3 where this helped. Please keep looking, and good luck. Jan 8 at 19:37
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I had the similar problem on Ubuntu 20.04 with VLC 3.0.9.2: screenshots from a video was all black. Disabling Hardware-accelerated decoding option does not help.

Updating to the last version (VLC 3.0.19) as recommended by C.D. in the update section of the current question helped.

I had to install this version from snap:

sudo snap install vlc

Because as described on the official VLC site the last version is available only from there.

After installing new version of VLC I have two versions available to run - one from apt and the other from snap. Will be using VLC 3.0.9.2 version for regular use. And snap version when there is a need to take screenshots from a video.


Update: There is build-in screenshot function in VLC player that is normally working also in VLC 3.0.9.2:

Menu -> Video -> Take Screenshot

Shortcut for Linux: Shift+S

Screenshots are saved also to the standard folder:

/home/user-name/Pictures

Additional details:

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