After the update to Ubuntu 18.04, the vlc player can't be used anymore on my second screen(Main screen is 1366x768 and second screen is 1920x1080). When it is dragged from the main screen (where it looks normal) to the second screen, the interface is replaced by a huge ">>" button(see screenshot). I've already deleted and reinstalled vlc. Any help would be appreciated.

attached screenshot

LE: vlc was installed with

sudo apt install vlc

the output of apt-cache policy vlc is:

  Installed: 4.0.0~rc1~~git20180727+r77135+157~ubuntu18.04.1
  Candidate: 4.0.0~rc1~~git20180727+r77135+157~ubuntu18.04.1
  Version table:
 *** 4.0.0~rc1~~git20180727+r77135+157~ubuntu18.04.1 500
        500 http://ppa.launchpad.net/videolan/master-daily/ubuntu bionic/main amd64 Packages
        100 /var/lib/dpkg/status
     3.0.2-0ubuntu0.1 500
        500 http://ro.archive.ubuntu.com/ubuntu bionic-updates/universe amd64 Packages
     3.0.1-3build1 500
        500 http://ro.archive.ubuntu.com/ubuntu bionic/universe amd64 Packages
  • Maybe this link to the Ubuntu Forums (and the whole thread before it) can help, Problem with vlc
    – sudodus
    May 29 '18 at 16:13
  • @DavidFoerster thanks for the comment. I've added the info.
    – raz
    Jul 30 '18 at 16:37

Your VLC installation is from a PPA that provide unstable daily builds. Please either

  • remove the PPA and revert to the VLC packages provided by Canonical:

    sudo apt install ppa-purge
    sudo ppa-purge ppa:videolan/master-daily


  • report the bug to the VideoLAN project and wait until it is fixed.


I had the same issue.


  1. Edit /etc/environment with administrator rights.
  2. Add the following line: QT_AUTO_SCREEN_SCALE_FACTOR=0
  3. Reboot your PC.



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