SUMMARY On my HP Zbook Ultra G1A with Strix Halo APU resume from suspend often shows a black screen. The mouse cursor is not available, and I could not switch to other virtual consoles. Killing `kwin_wayland` over ssh connection restores the screen. STEPS TO REPRODUCE 1. Kernel `6.18.5` with additional patches applied (see this comment: https://gitlab.freedesktop.org/drm/amd/-/issues/4866#note_3285085) 3. Plasma version `6.5.5` (same problem happens on `6.5.4`) 2. Logged in using wayland session type 3. Trigger sleep and then resume from it OBSERVED RESULT The screen is black in ~70% of cases. Sometimes everything works ok. If I switch to an X11 session - no problems with resume. In `dmesg` output - no errors/warnings on resume. Attaching/detaching the external monitor does not change the state. Only killing `kwin_wayland` helps. In logs I see: kwin_core: Failed to delay sleep: The operation inhibition has been requested for is already running kwin_wayland_drm: Atomic modeset test failed! Permission denied kwin_wayland_drm: Setting dpms mode failed! So initially I assumed I am affected by either https://bugs.kde.org/show_bug.cgi?id=513151 or https://bugs.kde.org/show_bug.cgi?id=511118, but now I am not sure. EXPECTED RESULT The screen is working normally after resuming from the suspend state. SOFTWARE/OS VERSIONS Operating System: Gentoo Linux 2.18 KDE Plasma Version: 6.5.5 KDE Frameworks Version: 6.20.0 Qt Version: 6.10.1 Kernel Version: 6.18.5-gentoo-yahor (64-bit) Graphics Platform: Wayland Processors: 32 × AMD RYZEN AI MAX+ PRO 395 w/ Radeon 8060S Memory: 128 GiB of RAM (109.8 GiB usable) Graphics Processor: Radeon 8060S Graphics ADDITIONAL INFORMATION