Package: kwin-wayland Version: 4:5.13.5-1 Severity: important Dear Maintainer,
When using KWin Wayland session in Debian testing with AMD Vega 56 GPU (connected over DisplayPort), it cores right after log-in and falls back into sddm. I managed to produce a core backtrace - it's happening in the interaction between kwin_wayland and wayland-client. Wayland and KDE developers so far didn't figure out the cause. Mesa developers suggested, that it can be a Debian specific issue, since it doesn't happen on some other up to date distros. See Wayland bug reference below for a backtrace of the crash. * corresponding Wayland bug: https://gitlab.freedesktop.org/wayland/wayland/issues/56 * corresponding KDE bug: https://bugs.kde.org/show_bug.cgi?id=396066 * corresponding Mesa bug: https://bugs.freedesktop.org/show_bug.cgi?id=107213 Configuration: Current Debian testing Linux (x86_64) (kernel: 4.19.0-rc4), KDE Plasma 5.13.5. kwin-wayland 5.13.5 libwayland-client0 1.16.0 GPU: Sapphire Pulse Vega 56 (amdgpu), DisplayPort connection. Mesa: 18.1.7. -- System Information: Debian Release: buster/sid APT prefers testing APT policy: (500, 'testing') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.19.0-rc4-amd64 (SMP w/16 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE= (charmap=UTF-8) Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages kwin-wayland depends on: ii kwayland-integration 5.13.4-1 ii kwin-common 4:5.13.5-1 ii kwin-wayland-backend-drm 4:5.13.5-1 ii libc6 2.27-6 ii libcap2 1:2.25-1.2 ii libcap2-bin 1:2.25-1.2 ii libepoxy0 1.5.2-0.3 ii libfontconfig1 2.13.0-5 ii libfreetype6 2.8.1-2 ii libkf5coreaddons5 5.49.0-1 ii libkf5i18n5 5.49.0-1 ii libkf5idletime5 5.49.0-1 ii libkf5quickaddons5 5.49.0-1 ii libkf5waylandclient5 4:5.49.0-1 ii libkf5waylandserver5 4:5.49.0-1 ii libkf5windowsystem5 5.49.0-1 ii libkwineffects11 4:5.13.5-1 ii libqt5core5a [qtbase-abi-5-11-0] 5.11.1+dfsg-8 ii libqt5dbus5 5.11.1+dfsg-8 ii libqt5gui5 5.11.1+dfsg-8 ii libqt5widgets5 5.11.1+dfsg-8 ii libstdc++6 8.2.0-7 ii libwayland-egl1 1.16.0-1 ii libxcb1 1.13-3 ii xwayland 2:1.20.1-1 kwin-wayland recommends no packages. kwin-wayland suggests no packages. -- no debconf information