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Description of problem:
After installing and configuring the classification banner extension, it is observed that the top panel of the GDM login prompt and the classification banner overlaps. This behavior is not observed after logging into a user session.
Version-Release number of selected component (if applicable):
gnome-shell-extension-classification-banner-3.32.1-27.el8.noarch
Red Hat Enterprise Linux 8.6
How reproducible:
I was able to consistently reproduce.
Steps to Reproduce:
1. Configure classification banner per documentation.
2. Restart GDM or restart system.
3. Observe behavior.
Actual results:
Top bar/panel of GDM login prompt overlaps classification banner.
Expected results:
Top bar/panel of GDM login prompt does not overlap classification banner.
The issue is that the extension uses the work area for positioning, but gnome-shell skips setting it for the greeter.
I suspect that that's just an optimization - the main purpose of the work area is to determine the area that can be occupied by windows, and there are no windows on the login screen - and the issue can be addressed in gnome-shell itself. Otherwise I'll have to come up with a work around in the extension.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (gnome-shell bug fix and enhancement update), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2023:2841