Hi all, Ever since the Tumbleweed snapshot containing the liblzma fix/rollback, Kmail is refusing to run under Wayland/Plasma 6 (running Nvidia GTX1080 with driver version 550.67 from the Nvidia website). If I log into a Plasma X11 session immediately after boot, or if I start a Plasma Wayland session and then logout before starting Kmail and start a Plasma X11 session, Kmail works fine. If I attempt to run Kmail under Plasma Wayland, the window appears and sometimes has the folder list populated, but it hangs indefinitely and shows "Starting" in the status line. Clicking on it results in the unresponsive app dialog and the only option is to kill it. If I then log out and log into a Plasma X11 session without rebooting, Kmail starts but after 2 minutes a dialog appears that says, "The application has experienced a critical error and will now close" (or words to that effect). Running it from a command line produces the following: [13801:14241:0405/231901.115472:ERROR:vaapi_wrapper.cc(1319)] vaQuerySurfaceAttributes failed, VA error: invalid parameter [13801:14241:0405/231901.115495:ERROR:vaapi_wrapper.cc(1267)] FillProfileInfo_Locked failed for va_profile VAProfileH264Main and entrypoint VAEntrypointVLD [13801:14241:0405/231901.115504:ERROR:vaapi_wrapper.cc(1319)] vaQuerySurfaceAttributes failed, VA error: invalid parameter [13801:14241:0405/231901.115510:ERROR:vaapi_wrapper.cc(1267)] FillProfileInfo_Locked failed for va_profile VAProfileH264High and entrypoint VAEntrypointVLD Followed by a segfault. If I reboot and log straight into a Plasma X11 session it works fine again, until I next try to run it under Wayland. I also tried running it under Wayland from a Konsole session using 'kmail -- platform xcb', which worked for 2 mins and then produced exactly the same error, followed by: src/gbm_drv_common.c:130: GBM-DRV error (get_bytes_per_component): Unknown or not supported format: 808530000 src/gbm_drv_common.c:130: GBM-DRV error (get_bytes_per_component): Unknown or not supported format: 808530000 src/gbm_drv_common.c:130: GBM-DRV error (get_bytes_per_component): Unknown or not supported format: 808530000 src/gbm_drv_common.c:130: GBM-DRV error (get_bytes_per_component): Unknown or not supported format: 808530000 src/gbm_drv_common.c:130: GBM-DRV error (get_bytes_per_component): Unknown or not supported format: 808530000 And the same "Critical error" dialog. It has worked fine under Wayland for months, before and after the upgrade to Plasma 6 - it's only in the last week or so that it has begun to fail. Any clues where to look next? Regards, -- ========================================================================================================== Rodney Baker rodney.baker@outlook.com.au ==========================================================================================================