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I installed Ubuntu 24.04 LTS inside a Virtual Box on a new Windows 11 host. Clicking on the File Manager on the Desktop (or on related buttons like trash bin or CD) does not show a normal window but just some colored stripes, sometimes blinking. A screenshot is appended. Other applications (terminal, software center, firefox, ...) run without any problem. Can anybody please give me a hint, where this problem may come from?Screenshot after clicking file manager

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  • Have you installed the guest additions?
    – ChanganAuto
    Commented May 10 at 20:20
  • Yes I did. One problem is that I do not remember how ;.) I followed an instruction saying click on the disc symbol, then do this and that. Now as I said thefile manager also failed for the CD and did not show the directory. So I played around with the graphics driver and the 3D acceleration and the like and finally I was in a state where I could see the contents of the CD and complete the installation. Of course I thought that now my problem was solved but it wasn't.
    – Holger
    Commented May 10 at 20:30
  • So you probably didn't install and what you¡re seeing now is a consequence of "playing around". Virtualbox's guest additions for Ubuntu are in the Ubuntu repositories and should be installed from there.
    – ChanganAuto
    Commented May 10 at 20:43
  • The package is virtualbox-guest-additions-iso.
    – ChanganAuto
    Commented May 10 at 20:44
  • askubuntu.com/a/22745/1210606
    – ChanganAuto
    Commented May 10 at 21:25

1 Answer 1

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It looks issues of GTK4. A work-around is shared here: https://gitlab.freedesktop.org/mesa/mesa/-/issues/11008

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    While this link may answer the question, it is better to include the essential parts of the answer here and provide the link for reference. Link-only answers can become invalid if the linked page changes. - From Review
    – G-Man Says 'Reinstate Monica'
    Commented Jun 16 at 23:03
  • The suggested solution was to add export GSK_RENDERER=gl to the .profile or another login script. This did the trick for the file manager, thanks a lot! However, the problem persists for emacs which I use a lot. Is the renderer application specific and if so, how do I set it for one particular application like emacs?
    – Holger
    Commented Jun 18 at 14:29

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