*** This bug is a duplicate of bug 1969574 ***
https://bugs.launchpad.net/bugs/1969574
Hello Dmitry, or anyone else affected,
Accepted mutter into jammy-proposed. The package will build now and be
available at https://launchpad.net/ubuntu/+source/mutter/42.1-0ubuntu1
in a few hours, and then in the -proposed repository.
Please help us by testing this new package. See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed. Your feedback will aid us getting this
update out to other Ubuntu users.
If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, what testing has been
performed on the package and change the tag from verification-needed-
jammy to verification-done-jammy. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-jammy. In either case, without details of your testing we will
not be able to proceed.
Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in
advance for helping!
N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.
** Changed in: mutter (Ubuntu Jammy)
Status: In Progress => Fix Committed
** Tags added: verification-needed verification-needed-jammy
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https://bugs.launchpad.net/bugs/1971693
Title:
Alt+Tab is broken for Java (AWT/Swing) apps in Wayland session
Status in mutter package in Ubuntu:
Fix Committed
Status in mutter source package in Jammy:
Fix Committed
Bug description:
Impact
------
When switching to a Java UI application using Alt+Tab, very often
application's window is raised, but it doesn't get keyboard focus - it stays in
the previous application, and that application continues to process keyboard
events. When the problem occurs, hovering mouse over Java app's window gets the
focus transferred to it.
This problem only happens in Wayland session, not in X.Org session. It can be
reproduced in Ubuntu 22.04, but not in 20.04.4 version.
The problem seems to affect all Java versions - reproduced for
different OpenJDK builds (8, 11, 17, 18). It can also be observed for
Java version provided by Ubuntu's 'default-jre' package
(11.0.15+10-Ubuntu-0ubuntu0.22.04.1).
Test Case
---------
1. sudo apt install default-jre
2. Download the minimal test case app from comment #1
3. From a terminal run the app
java Downloads/JTextFieldTest.java
4. Click on the terminal window (instead of the Java app)
5. Press Alt-Tab to switch focus back to the Java app
6. Type a few characters.
The characters should show in the Java app's text field instead of in
the terminal window.
What Could Go Wrong
-------------------
See the master bug for this update at LP: #1972726
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