veyon-server doesn't start (Qt::AA_ShareOpenGLContexts must be set before QCoreApplication)
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@tobydox
Hi. I enabled the Logfiles in Debug-Mode.
Now I found this:/tmp]$ tail VeyonService.log 2021-05-29T11:52:41.093: [INFO] LinuxServiceCore::startServer(): Starting server for new session "/org/freedesktop/login1/session/_32" with ID 0 at seat "/org/freedesktop/login1/seat/seat0" 2021-05-29T11:55:20.873: [ERR] LinuxServiceCore::startServer(): Can't start Veyon Server in Wayland sessions as this is not yet supported. Please switch to X11-based sessions! 2021-05-29T11:55:23.198: [DEBUG] PlatformSessionManager::closeSession(): Closing session 0 for platform session "/org/freedesktop/login1/session/_32" 2021-05-29T11:55:23.198: [INFO] LinuxServiceCore::stopServer(): stopping server for removed session "/org/freedesktop/login1/session/_32" 2021-05-29T11:55:35.946: [DEBUG] LinuxServiceCore::startServWhen I observe the process
veyon-servicewithcatchsegvI found this:29/05/2021 12:12:03 Xinerama: number of sub-screens: 1 29/05/2021 12:12:03 Xinerama: no blackouts needed (only one sub-screen) 29/05/2021 12:12:03 X11 MIT Shared Memory Attach failed: Is your DISPLAY=:0 on a remote machine? Suggestion, use: x11vnc -display :0 ... for local display :0 caught X11 error: 29/05/2021 12:12:03 deleted 32 tile_row polling images. X Error of failed request: BadAccess (attempt to access private resource denied) Major opcode of failed request: 130 (MIT-SHM) Minor opcode of failed request: 1 (X_ShmAttach) Serial number of failed request: 57 Current serial number in output stream: 91And afterwards the same with
veyon-server:2021-05-29T12:15:35.158: [DEBUG] VeyonCore::initSystemInfo(): "4.5.5" "fossa.my-domain.de" "linux" "5.8.0-53-generic" "Ubuntu 20.04.2 LTS" "ubuntu" "20.04" 2021-05-29T12:15:35.166: [ERR] VncServer::VncServer(): no VNC server plugins found! 2021-05-29T12:15:35.196: [DEBUG] [KLDAP] connection closed! 2021-05-29T12:15:35.196: [DEBUG] [KLDAP] ldap url: "ldap://server.my-domain.de:3268" 2021-05-29T12:15:35.197: [DEBUG] [KLDAP] setting version to: 3 2021-05-29T12:15:35.197: [DEBUG] [KLDAP] setting timeout to: 0 2021-05-29T12:15:35.197: [DEBUG] [KLDAP] setting security to: 1 2021-05-29T12:15:35.197: [DEBUG] [KLDAP] start TLS 2021-05-29T12:15:35.264: [DEBUG] [KLDAP] setting sizelimit to: 0 2021-05-29T12:15:35.264: [DEBUG] [KLDAP] setting timelimit to: 0 2021-05-29T12:15:35.264: [DEBUG] [KLDAP] initializing SASL client 2021-05-29T12:15:35.264: [DEBUG] [KLDAP] binding to server, bindname: "<MY-SAMBA-DOMAIN>\\admin" password: ***** 2021-05-29T12:15:35.264: [DEBUG] [KLDAP] ldap_sasl_bind_s (simple) 2021-05-29T12:15:35.303: [DEBUG] FeatureWorkerManager::startUnmanagedSessionWorker(): Starting worker (unmanaged session process) for feature QUuid("{8e997d84-ebb9-430f-8f72-d45d9821963d}") 2021-05-29T12:15:35.304: [DEBUG] FeatureWorkerManager::sendMessageToUnmanagedSessionWorker(): User session likely not yet available - retrying worker start 2021-05-29T12:15:35.304: [DEBUG] VncProxyServer::start(): started on port 11100 2021-05-29T12:15:35.304: [DEBUG] VncServer::prepare(): 2021-05-29T12:15:35.304: [DEBUG] VeyonCore::exec(): Running 2021-05-29T12:15:35.305: [DEBUG] VeyonCore::exec(): Exit 2021-05-29T12:15:35.305: [DEBUG] ComputerControlServer::~ComputerControlServer(): 2021-05-29T12:15:35.305: [DEBUG] VncServer::~VncServer(): 2021-05-29T12:15:35.305: [DEBUG] Logger::~Logger(): Shutdown PluginManager::~PluginManager(): CryptoCore::~CryptoCore(): KLDAP: connection closed!Is this helpful?
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@tobydox said in veyon-server doesn't start (Qt::AA_ShareOpenGLContexts must be set before QCoreApplication):
-noshm
Wow -- I think that's the solution! I just added this option and restarted the Client -- now "htop" shows a running veyon-server ... I can't test it in our productive environment at the moment but it looks good so far! Thank you!
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@white_rabbit where do you add this parameter? Is it in the Veyon configuration interface somewhere?
