** Changed in: mutter (Ubuntu Noble)
Assignee: (unassigned) => Alessandro Astone (aleasto)
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https://bugs.launchpad.net/bugs/2097415
Title:
Ubuntu 24.04, mutter: drag and drop does not work between x11 and
wayland applications
Status in Mutter:
Fix Released
Status in mutter package in Ubuntu:
Fix Released
Status in mutter source package in Noble:
Triaged
Status in mutter source package in Oracular:
Fix Released
Status in mutter source package in Plucky:
Fix Released
Status in mutter package in Fedora:
Won't Fix
Bug description:
Original report[1]:
----------
Description of problem:
Unable to perform Drag and Drop using XDND protocol from Xlib
application to application running on Wayland display server natively.
How reproducible:
always
Steps to Reproduce:
1. compile attached file with "gcc XDnDSource.c -o XDnDSource -lX11 &&
./XDnDSource".
Attached file is a simple drag source client, written using XDND protocol.
It has single mime-type to transfer: `text-plain`.
2. try to perform drag and drop starting from black area.
3. drop to gedit, firefox, etc.
4. <fail>
Actual results:
It fails to find any window having XdndAware property(except for apps running
on XWayland),
so it unable to perform drop action.
Expected results:
Performed drop.
Additional information:
The same example works for Ubuntu 21.04, Oracle Linux 8u5 on Wayland, but not
on Fedora 35.
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The issue was fixed in Gnome 47 (plucky, oracular), but still present
in Gnome 46 (noble). Attached reproducer from the original report.
Why it is important:
---
Alexander [email protected]
· 8 months ago
Author
OpenJDK has only just finished the work to support XWayland, and so the
timing of this bug is very unfortunate.
It causes a CONFORMANCE test failure, which means that no JDK
distribution, from any vendor can claim to support Java in this
configuration (Gnome 46).
This includes at least Ubuntu 24.04, Fedora 40, Manjaro 24.
A fix for this needs to be in place and backported as a Gnome 46 patch
for those distros.
Related JDK issue https://bugs.openjdk.org/browse/JDK-8333310
Thanks in advance.
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[2]
[1] https://bugzilla.redhat.com/show_bug.cgi?id=2027569#c0)
[2] https://gitlab.gnome.org/GNOME/mutter/-/issues/3511
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