So, the problem here is going to be the EGL platform detection - it's failing to detect Mir, and is instead trying (and failing) to connect to an X server.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1696797 Title: [regression] Mir EGL clients all crash with SIGSEGV in XGetXCBConnection() Status in Mir: New Status in mesa package in Ubuntu: New Status in miral package in Ubuntu: Invalid Bug description: Running today's daily ISO, enabled universe and installed: $ sudo apt install miral-examples mir-graphics-drivers-desktop qterminal qtubuntu-desktop Then, $ miral-app -launcher qterminal works. But after doing, $ sudo apt upgrade -y It crashes as seen here. Probably related: $ sudo apt install mir-demos $ mir_demo_server --test-client mir_demo_client_eglplasma also crashes. Avoiding EGL use by: $ miral-app -kiosk Works until an EGL app is started ProblemType: Crash DistroRelease: Ubuntu 17.10 Package: miral-examples 1.3.2+17.04.20170330.5-0ubuntu1 ProcVersionSignature: Ubuntu 4.10.0-22.24-generic 4.10.15 Uname: Linux 4.10.0-22-generic x86_64 ApportVersion: 2.20.5-0ubuntu4 Architecture: amd64 CasperVersion: 1.383 CurrentDesktop: GNOME Date: Thu Jun 8 16:15:14 2017 ExecutablePath: /usr/bin/miral-shell LiveMediaBuild: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170607) ProcCmdline: /usr/bin/miral-shell --file /run/user/999/miral_socket --desktop_file_hint=miral-shell.desktop ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash Signal: 11 SourcePackage: miral StacktraceTop: XGetXCBConnection () from /usr/lib/x86_64-linux-gnu/libX11-xcb.so.1 ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1 ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1 ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1 ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1 Title: miral-shell crashed with SIGSEGV in XGetXCBConnection() UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1696797/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp