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I had installed Eclipse 2020-03 mostly to program in Python with PyDev: everything worked fine. (In Ubuntu 16.04.7)

I updated to Eclipse IDE 2020-06 through Check for updates menu. Now I cannot move (drag and drop) the windows in the workbench, nor resize them by moving the separation between them. In this situation the utility of eclipse is extreme limited.

Do you have any insight on what to do to have full windows functionality on ECLIPSE? Thanks.

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    Might be an GTK issue. Eclipse 2020-06 (4.16) requires now GTK 3.20. Does an upgrade of GTK help?
    – howlger
    Commented Aug 14, 2020 at 23:41
  • Thanks for hint! It might go in the right direction. Certainly, I have version GTK 3.18.9
    – loved.by.Jesus
    Commented Aug 17, 2020 at 7:16
  • @howlger your suggestion did not help with this issue, but it was a great improvement for my Ubuntu 16.04. desktop to upgrade to GTK 3.20. I recommend it: see post upgrade to GTK 3.20 for Ubuntu 16.04
    – loved.by.Jesus
    Commented Sep 8, 2020 at 8:45
  • I can confirm, that doing those steps will make the workbench windows, toolbars and toolboxes drag and drop again
    – woodz
    Commented Dec 10, 2020 at 10:49

1 Answer 1

Reset to default
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Conservative Solution

The fastest way to recover the lost functionality is to revert to the previous installation 2020-03. It worked fine after correcting some problems with the eclipse.ini file, because the -startup and the --launcher.library entry in this file are wrong.

  1. -startup entry: To find the right .jar file go to the folder plugins which is in the eclipse.ini directory (e.g., /opt/eclipse/2020-03/eclipse) and copy the right name in eclipse.ini (in my case the right .jar file was plugins/org.eclipse.equinox.launcher_1.5.700.v20200207-2156.jar)

  2. --launcher.library entry: To find the right launcher write on terminal locate .equinox.launcher.gtk and take the newest version of the launcher, which is usually found in ~/.p2/pool/plugins/ (in my case the right launcher was ~/.p2/pool/plugins/org.eclipse.equinox.launcher.gtk.linux.x86_64_1.1.1200.v20200508-1552 )

Sadly, this is not a full solution, because I have to give up the newest version 2020-06 :_(

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    I did hit the same issue. Thanks for the post!
    – Philippe Ombredanne
    Commented Sep 7, 2020 at 9:08

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