Public bug reported: [Impact] When configuring Fingerprint Login in Settings → Users, clicking "Scan new fingerprint" produces no visible response. That button opens a popover containing a tall, vertical list of fingers to enroll, anchored below the button (the popover's default position). On small/tablet displays — and especially at 200% display scaling, where the dialog and screen become short — there is not enough vertical room beneath the button for the finger list, and GTK cannot flip it above either. The popover therefore fails to lay out and never appears, leaving the user unable to select a finger and completely blocking fingerprint enrollment.
[Test Plan] 1. Set display scale to 200% 2. On a device with a fingerprint reader, open Settings → Users 3. Start fingerprint setup and click "Scan new fingerprint" Expected result with the fix: The finger list popover opens to the right of the button when space allows, switches to the left if the right side is too narrow, and falls back below the button only when both sides are too narrow. [ Where problems could occur ] Possible issues: a brief flicker if the popover closes and reopens after a scale/rotation/resize (driven by a 250 ms timer), or a non-optimal but still-visible placement if the space measurement is slightly off. [ Other Info ] https://gitlab.gnome.org/GNOME/gnome-control-center/-/work_items/3208 ** Affects: oem-priority Importance: Undecided Assignee: Cyrus Lien (cyruslien) Status: New ** Affects: gnome-control-center (Ubuntu) Importance: Undecided Status: New ** Package changed: gnome-control-center (Ubuntu) => oem-priority ** Changed in: oem-priority Assignee: (unassigned) => Cyrus Lien (cyruslien) ** Also affects: gnome-control-center (Ubuntu) Importance: Undecided Status: New ** Summary changed: - Fingerprint enrollment: "Scan new fingerprint" popover does not appear at 200% scale on tablet + Fingerprint enrollment: click "Scan new fingerprint", the finger-list popover does not appear at 200% scale display on tablet -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2158603 Title: Fingerprint enrollment: click "Scan new fingerprint", the finger-list popover does not appear at 200% scale display on tablet To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/2158603/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
