Bug#909636: kwin-wayland: kwin_wayland is segfaulting right after login
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
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