SUMMARY Screen locker: Application content is visible for ~400 ms after returning from Sleep. STEPS TO REPRODUCE 1. Power Management settings: "When laptop lid closed: Sleep" 2. Screen Locking settings: "Lock after waking from sleep" in enabled. 3. Open some apps on a laptop. 4. Close laptop lid. Wait a few seconds for laptop to go to Sleep. 5. Open laptop lid. OBSERVED RESULT Application(s) and all their window content is visible for ~400 ms. After that, the screen locker UI appears on screen. This is a privacy and security risk: an unauthorized person may get access to sentitive data, including credentials/passwords if they were on screen before closing laptop lid. EXPECTED RESULT Screen locker UI (or at least a black screen) should appear immediately after returning from Sleep. SOFTWARE/OS VERSIONS Operating System: Debian GNU/Linux rodete KDE Plasma Version: 6.3.5 KDE Frameworks Version: 6.13.0 Qt Version: 6.8.2 Kernel Version: 6.12.27-1rodete1-amd64 (64-bit) Graphics Platform: X11 Processors: 14 × Intel® Core™ Ultra 7 165U Memory: 62.3 GiB of RAM Graphics Processor: Intel® Graphics ADDITIONAL INFORMATION
>Graphics Platform: X11 This is known and not fixable. There are issues below us in the stack. It's one of the we're moving to wayland. There's a dupe somewhere with more details, I've seen your name on bugzilla enough to know you'll be able to find it.