Programs run in full screen while using xfwm4 (without composite in use) are covered by xfce4-panel. Using metacity before running a fullscreen app is one known work around. I am using Nvidia 180.29 drivers (always find it helps to mention this :) ) Using only Xfce Menu, task list, clock and notification area panel plugins.
Can you give a bit more details on how do reproduce this, be cause it is not how it is supposed to work, and I obviously cannot produce that. Fullscreen apps are set back to their original layer when they loose focus.
Starting with what application, how you switch to fullscreen (Alt-F11 or application option) and the output of "xprop" on the application window that is covered by the panel.
Oh, and also the output of "xfwm4 --version", that always help clarifying what version of xfce/xfwm4 you run...
To reproduce this, open Google Chrome and go fullscreen. Switch to a different workspace and go back; the panel will cover Google Chrome. As a temporary solution, I enable window compositing and check the option to display fullscreen windows directly.
similar to 8563
-- GitLab Migration Automatic Message -- This bug has been migrated to xfce.org's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.xfce.org/xfce/xfwm4/-/issues/19. Please create an account or use an existing account on one of our supported OAuth providers. If you want to fork to submit patches and merge requests please continue reading here: https://docs.xfce.org/contribute/dev/git/start#gitlab_forks_and_merge_requests Also feel free to reach out to us on the mailing list https://mail.xfce.org/mailman/listinfo/xfce4-dev