SUMMARY Logging in to a Wayland session with KDE Plasma 6.4.2 (Neon Testing Edition) fails and returns to the login screen. STEPS TO REPRODUCE 1. Login to Wayland session on KDE Neon Testing Edition. OBSERVED RESULT KDE Plasma fails to start and returns to the login screen. EXPECTED RESULT KDE Plasma session starts. SOFTWARE/OS VERSIONS ERROR: VkInstanceCreateInfo::pApplicationInfo::apiVersion has value of 0 which is not permitted. If apiVersion is not 0, then it must be greater than or equal to the value of VK_API_VERSION_1_0 [VUID-VkApplicationInfo-apiVersion] Operating System: KDE neon Testing Edition KDE Plasma Version: 6.4.2 KDE Frameworks Version: 6.16.0 Qt Version: 6.9.1 Kernel Version: 6.11.0-29-generic (64-bit) Graphics Platform: X11 Processors: 8 × Intel® Core™ i7-8665U CPU @ 1.90GHz Memory: 16 GiB of RAM (15.4 GiB usable) Graphics Processor: Intel® UHD Graphics 620 ADDITIONAL INFORMATION This starting happening after upgrading KDE Neon Testing Edition today. Jul 14 10:29:51 <---HOSTNAME---> kwin_wayland_wrapper[3764]: free(): invalid pointer Jul 14 10:29:51 <---HOSTNAME---> systemd-coredump[3800]: [🡕] Process 3764 (kwin_wayland) of user ********* dumped core. Module libgomp.so.1 from deb gcc-14-14.2.0-4ubuntu2~24.04.amd64 Module libgcc_s.so.1 from deb gcc-14-14.2.0-4ubuntu2~24.04.amd64 Module libudev.so.1 from deb systemd-255.4-1ubuntu8.8.amd64 Module libzstd.so.1 from deb libzstd-1.5.5+dfsg2-2build1.1.amd64 Module libstdc++.so.6 from deb gcc-14-14.2.0-4ubuntu2~24.04.amd64 Module libsystemd.so.0 from deb systemd-255.4-1ubuntu8.8.amd64 Stack trace of thread 3764: #0 0x0000792530c9eb2c __pthread_kill_implementation (libc.so.6 + 0x9eb2c) #1 0x0000792530c4527e __GI_raise (libc.so.6 + 0x4527e) #2 0x0000792530c288ff __GI_abort (libc.so.6 + 0x288ff) #3 0x0000792530c297b6 __libc_message_impl (libc.so.6 + 0x297b6) #4 0x0000792530ca8ff5 malloc_printerr (libc.so.6 + 0xa8ff5) #5 0x0000792530cab38c _int_free (libc.so.6 + 0xab38c) #6 0x0000792530caddae __GI___libc_free (libc.so.6 + 0xaddae) #7 0x0000792531c5ace0 n/a (libQt6Gui.so.6 + 0x25ace0) #8 0x0000792531ce0417 _ZN22QGuiApplicationPrivate25createPlatformIntegrationEv (libQt6Gui.so.6 + 0x2e0417) #9 0x0000792531ce1f00 _ZN22QGuiApplicationPrivate21createEventDispatcherEv (libQt6Gui.so.6 + 0x2e1f00) #10 0x00007925318bb3a9 _ZN23QCoreApplicationPrivate4initEv (libQt6Core.so.6 + 0x4bb3a9) #11 0x0000792531ce1f9f _ZN22QGuiApplicationPrivate4initEv (libQt6Gui.so.6 + 0x2e1f9f) #12 0x0000792532c39825 _ZN19QApplicationPrivate4initEv (libQt6Widgets.so.6 + 0x639825) #13 0x000079253410f439 _ZN4KWin11ApplicationC1ERiPPc (libkwin.so.6 + 0x30f439) #14 0x00005a407e223738 n/a (kwin_wayland + 0x64738) #15 0x0000792530c2a1ca __libc_start_call_main (libc.so.6 + 0x2a1ca) #16 0x0000792530c2a28b __libc_start_main_impl (libc.so.6 + 0x2a28b) #17 0x00005a407e22b905 n/a (kwin_wayland + 0x6c905) Stack trace of thread 3798: #0 0x0000792530d1b4cd __GI___poll (libc.so.6 + 0x11b4cd) #1 0x000079252fe4368e n/a (libglib-2.0.so.0 + 0xbc68e) #2 0x000079252fde3a63 g_main_context_iteration (libglib-2.0.so.0 + 0x5ca63) #3 0x000079253166124f _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt6Core.so.6 + 0x26124f) #4 0x00007925318c0b6b _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0x4c0b6b) #5 0x00007925317ce6b7 _ZN7QThread4execEv (libQt6Core.so.6 + 0x3ce6b7) #6 0x00007925323d891d n/a (libQt6DBus.so.6 + 0x9c91d) #7 0x000079253179482c n/a (libQt6Core.so.6 + 0x39482c) #8 0x0000792530c9caa4 start_thread (libc.so.6 + 0x9caa4) #9 0x0000792530d29c3c __clone3 (libc.so.6 + 0x129c3c) ELF object binary architecture: AMD x86-64
This has been fixed in an update from today.