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Thread: VNC connection repeatedly dropped since update to xorg-x11-Xvnc 1.6.0-6.1

  1. #1

    Default VNC connection repeatedly dropped since update to xorg-x11-Xvnc 1.6.0-6.1

    This was a security patch claiming to prevent the server from overflowing a buffer in the client, but since taking on the patch, the server keeps dropping the connection to clients and reports an overflow. Rolling back to 1.6.0-3.1 seems to have fixed it.

  2. #2

    Default Re: VNC connection repeatedly dropped since update to xorg-x11-Xvnc 1.6.0-6.1

    Still broken with version 1.6.0-6.1. Here's the log file in two pieces (too big for one post):


    Code:
    Xvnc TigerVNC 1.6.0 - built ??? ?? ???? ??:??:??
    Copyright (C) 1999-2015 TigerVNC Team and many others (see README.txt)
    See http://www.tigervnc.org for information on TigerVNC.
    Underlying X server release 11803000, The X.Org Foundation
    
    
    Mon Feb 13 11:30:41 2017
     vncext:      VNC extension running!
     vncext:      Listening for VNC connections on all interface(s), port 5901
     vncext:      Listening for HTTP connections on all interface(s), port 5801
     vncext:      created VNC server for screen 0
    /etc/X11/xim: Checking whether an input method should be started.
    /etc/X11/xim: Checking whether an input method is specified in /home/paul/.profile.
    sourcing /etc/sysconfig/language to get the value of INPUT_METHOD
    INPUT_METHOD is not set or empty (no user selected input method).
    Trying to start a default input method for the locale en_GB.UTF-8 ...
    There is no default input method for the current locale.
    Dummy input method "none" (do not use any fancy input method by default)
    Loading stage  "initial" 191
    startkde: Starting up...
    Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString)
    kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/lib64/qt5/plugins/kf5/kded/kscreen.so"
    kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/lib64/qt5/plugins/kf5/kded/proxyscout.so"
    kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/lib64/qt5/plugins/kf5/kded/bluedevil.so"
    kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/lib64/qt5/plugins/kf5/kded/networkmanagement.so"
    kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/lib64/qt5/plugins/kf5/kded/networkstatus.so"
    kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/lib64/qt5/plugins/kf5/kded/khotkeys.so"
    kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/lib64/qt5/plugins/kf5/kded/networkwatcher.so"
    kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/lib64/qt5/plugins/kf5/kded/recentdocumentsnotifier.so"
    kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/lib64/qt5/plugins/kf5/kded/baloosearchmodule.so"
    kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/lib64/qt5/plugins/kf5/kded/appmenu.so"
    kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/lib64/qt5/plugins/kf5/kded/desktopnotifier.so"
    kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/lib64/qt5/plugins/kf5/kded/freespacenotifier.so"
    kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/lib64/qt5/plugins/kf5/kded/ksysguard.so"
    kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/lib64/qt5/plugins/kf5/kded/ktimezoned.so"
    kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/lib64/qt5/plugins/kf5/kded/remotedirnotify.so"
    kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/lib64/qt5/plugins/kf5/kded/solidautoeject.so"
    kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/lib64/qt5/plugins/kf5/kded/soliduiserver.so"
    kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/lib64/qt5/plugins/kf5/kded/statusnotifierwatcher.so"
    kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/lib64/qt5/plugins/kf5/kded/device_automounter.so"
    kf5.kded: No X-KDE-DBus-ServiceName found in "/usr/lib64/qt5/plugins/kf5/kded/keyboard.so"
    Initializing  "kcm_kgamma" :  "kcminit_kgamma"
    kf5.kded: found kded module "printmanager" by prepending 'kded_' to the library path, please fix your metadata.
    Initializing  "kcm_style" :  "kcminit_style"
    pm.kded: unable to register service to dbus
    Initializing  "kded_touchpad" :  "kcminit_touchpad"
    detected kglobalaccel restarting, re-registering all shortcut keys
    Initializing  "kcm_access" :  "kcminit_access"
    Initializing  "kcm_input" :  "kcminit_mouse"
    kf5.kcoreaddons.kaboutdata: Could not initialize the equivalent properties of Q*Application: no instance (yet) existing.
    kscreen.kded: Config KScreen::Config(0x77e5f0) is ready
    kscreen.kded: PowerDevil SuspendSession action not available!
    kscreen.kded: "The name org.kde.Solid.PowerManagement was not provided by any .service files"
    kscreen.kded: Applying config
    kscreen.kded: Applying known config "75c639e54d6190a271d1ea74a40e9353"
    kscreen.kded: Finding a mode for QSize(1280, 800) @ 60
    kscreen.kded:     Found:  "69"   QSize(1280, 800) @ 60
    kscreen.kded: doApplyConfig()
    Qt: Session management error: networkIdsList argument is NULL
    kscreen.kded: Config applied
    kscreen.kded: Monitor for changes:  true
    kscreen: Requesting missing EDID for outputs (60)
    kscreen.kded: Change detected
    kscreen.kded: KScreen::Output( 60   "VNC-0" connected enabled QPoint(0,0) QSize(1280, 800) "69" )
    Configuring Lock Action
    XSync seems available and ready
    XSync Inited
    Supported, init completed
    ksmserver: "/run/user/500/KSMserver"
    ksmserver: KSMServer: SetAProc_loc: conn  0 , prot= local , file= @/tmp/.ICE-unix/26207
    ksmserver: KSMServer: SetAProc_loc: conn  1 , prot= unix , file= /tmp/.ICE-unix/26207
    ksmserver: KSMServer::restoreSession  "saved at previous logout"
    kscreen.kded: Saving current config to file
    kscreen.kded: Config saved on:  "/home/paul/.local/share/kscreen/75c639e54d6190a271d1ea74a40e9353"
    kscreen.kded: KScreen::Output( 60   "VNC-0" connected enabled QPoint(0,0) QSize(1280, 800) "69" )
    ksmserver: Starting autostart service  "/etc/xdg/autostart/kdeconnectd.desktop"
    ksmserver: Starting autostart service  "/etc/xdg/autostart/krunner.desktop"
    ksmserver: Starting autostart service  "/etc/xdg/autostart/plasmashell.desktop"
    ksmserver: Starting autostart service  "/etc/xdg/autostart/polkit-kde-authentication-agent-1.desktop"
    ksmserver: Starting autostart service  "/etc/xdg/autostart/xembedsniproxy.desktop"
    ksmserver: Autostart 0 done
    Session path: "/org/freedesktop/login1/session/_3806"
    ksmserver: Kcminit phase 1 done
    ksmserver: Starting autostart service  "/etc/xdg/autostart/pulseaudio.desktop"
    ksmserver: Autostart 1 done
    completeShutdownOrCheckpoint called
    completeShutdownOrCheckpoint called
    "\"fsrestore1\" - conversion of \"0,0,0,0\" to QRect failed"
    powerdevil: Backend loaded, loading core
    powerdevil: Core loaded, initializing backend
    kscreen: Requesting missing EDID for outputs (60)
    kscreen.kded: Change detected
    kscreen.kded: KScreen::Output( 60   "VNC-0" connected enabled QPoint(0,0) QSize(1280, 800) "69" )
    completeShutdownOrCheckpoint called
    powerdevil: No outputs have backlight property
    powerdevil: Falling back to helper to get brightness
    QDBusArgument: read from a write-only object
    QDBusArgument: read from a write-only object
    QDBusArgument: read from a write-only object
    completeShutdownOrCheckpoint called
    kscreen.kded: Saving current config to file
    kscreen.kded: Config saved on:  "/home/paul/.local/share/kscreen/75c639e54d6190a271d1ea74a40e9353"
    kscreen.kded: KScreen::Output( 60   "VNC-0" connected enabled QPoint(0,0) QSize(1280, 800) "69" )
    completeShutdownOrCheckpoint called
    completeShutdownOrCheckpoint called
    Config timer connecting...
    powerdevil: org.kde.powerdevil.backlighthelper.brightness failed
    powerdevil: ""
    completeShutdownOrCheckpoint called
    OpenGL vendor string:                   VMware, Inc.
    OpenGL renderer string:                 Gallium 0.4 on llvmpipe (LLVM 3.8, 128 bits)
    OpenGL version string:                  3.0 Mesa 11.2.2
    OpenGL shading language version string: 1.30
    Driver:                                 LLVMpipe
    GPU class:                              Unknown
    OpenGL version:                         3.0
    GLSL version:                           1.30
    Mesa version:                           11.2.2
    X server version:                       1.18.3
    Linux kernel version:                   4.4.36
    Requires strict binding:                yes
    GLSL shaders:                           yes
    Texture NPOT support:                   yes
    Virtual Machine:                        no
    powerdevil: Backend is ready, KDE Power Management system initialized
    
    
    XSync seems available and ready
    XSync Inited
    Supported, init completed
    powerdevil: Session path: "/org/freedesktop/login1/session/_3806"
    powerdevil: Unable to associate systemd session with a seat "/"
    powerdevil: Got a valid offer for  "DPMSControl"
    BluezQt: Cannot open /dev/rfkill for reading!
    powerdevil: Core is ready, registering various services on the bus...
    powerdevil: Can't contact systemd
    powerdevil: Can't contact ck
    powerdevil: We are now into activity  "00000000-0000-0000-0000-000000000000"
    powerdevil: () ()
    powerdevil: () ()
    powerdevil: No batteries found, loading AC
    powerdevil: Activity is not forcing a profile
    powerdevil: The profile  "AC" tried to activate "DimDisplay" a non-existent action. This is usually due to an installation problem, or to a configuration problem, or simply the action is not supported
    powerdevil: The profile  "AC" tried to activate "DPMSControl" a non-existent action. This is usually due to an installation problem, or to a configuration problem, or simply the action is not supported
    powerdevil: Handle button events action could not check for screen configuration
    powerdevil: Can't contact systemd
    powerdevil: Can't contact ck
    completeShutdownOrCheckpoint called
    ksmserver: autostart service "start-pulseaudio-x11" finished with exit code  0
    powerdevil: Can't contact systemd
    powerdevil: Can't contact ck
    powerdevil: We are now into activity  "6a29e438-5108-4d94-b379-f750faa5a85d"
    powerdevil: () ()
    powerdevil: () ()
    powerdevil: No batteries found, loading AC
    powerdevil: Activity is not forcing a profile
    powerdevil: Skipping action reload routine as profile has not changed
    completeShutdownOrCheckpoint called
    Setting the name of  0x25d8d30  to  "org.kde.ActivityManager.ActivityTemplates"
    Setting the name of  0x25c2120  to  "org.kde.ActivityManager.RunApplication"
    Setting the name of  0x25e5290  to  "org.kde.ActivityManager.Resources.Scoring"
    Creating directory:  "/home/paul/.local/share/kactivitymanagerd/resources/"
    KActivities: Database connection:  "kactivities_db_resources_139686928811904_readwrite" 
        query_only:          QVariant(qlonglong, 0) 
        journal_mode:        QVariant(QString, "wal") 
        wal_autocheckpoint:  QVariant(qlonglong, 100) 
        synchronous:         QVariant(qlonglong, 1)
    Service started, version: 7.0.0
    Service started, version: 7.0.0
    Cleaning up...
    Cleaning up...

  3. #3

    Default Re: VNC connection repeatedly dropped since update to xorg-x11-Xvnc 1.6.0-6.1

    ... and the rest of the log file:

    Code:
    QXcbConnection: XCB error: 3 (BadWindow), sequence: 996, resource id: 52428804, major code: 18 (ChangeProperty), minor code: 0
    QXcbConnection: XCB error: 3 (BadWindow), sequence: 1000, resource id: 50331652, major code: 18 (ChangeProperty), minor code: 0
    QXcbConnection: XCB error: 3 (BadWindow), sequence: 1004, resource id: 54525956, major code: 18 (ChangeProperty), minor code: 0
    BluezQt: Cannot open /dev/rfkill for reading!
    bluedevil: Created
    Installing the delayed initialization callback.
    Trying to convert empty KLocalizedString to QString.
    Trying to convert empty KLocalizedString to QString.
    Trying to convert empty KLocalizedString to QString.
    org.kde.kcm_keyboard: Failed to open layout memory xml file for reading "/home/paul/.local/share/kded5/keyboard/session/layout_memory.xml" error: 5
    kf5.kded: found kded module "touchpad" by prepending 'kded_' to the library path, please fix your metadata.
    ksmserver: Starting notification thread
    ksmserver: Kcminit phase 2 done
    ksmserver: Starting autostart service  "/etc/xdg/autostart/hplip-systray.desktop"
    ksmserver: Starting autostart service  "/etc/xdg/autostart/powerdevil.desktop"
    ksmserver: Autostart 2 done
    QXcbConnection: XCB error: 3 (BadWindow), sequence: 1575, resource id: 18874376, major code: 18 (ChangeProperty), minor code: 0
    Delayed initialization.
    Reloading the khotkeys configuration
    Version 2 File!
    true
    Imported file "/usr/share/khotkeys/spectacle.khotkeys"
    ksmserver: autostart service "/usr/lib64/libexec/org_kde_powerdevil" finished with exit code  0
    Imported file "/usr/share/khotkeys/defaults.khotkeys"
    Imported file "/usr/share/khotkeys/kde32b1.khotkeys"
    Imported file "/usr/share/khotkeys/konqueror_gestures_kde321.khotkeys"
    bluedevil: Bluetooth operational changed false
    bluedevil: ObexManager operational changed false
    bluedevil: ObexManager operational changed true
    bluedevil: ObexAgent registered
    Registering ":1.33/StatusNotifierItem" to system tray
    Registering "org.kde.StatusNotifierHost-26216" as system tray
    Registering ":1.31/org/kde/statusnotifieritem/1" to system tray
    Service  ":1.33" unregistered
    QXcbConnection: XCB error: 3 (BadWindow), sequence: 5957, resource id: 6291484, major code: 18 (ChangeProperty), minor code: 0
    
    Mon Feb 13 11:31:07 2017
     Connections: accepted: 10.0.0.27::59635
     SConnection: Client needs protocol version 3.3
    
    Mon Feb 13 11:31:10 2017
     VNCSConnST:  Server default pixel format depth 24 (32bpp) little-endian rgb888
     VNCSConnST:  Client pixel format depth 8 (8bpp) bgr233
    
    Mon Feb 13 11:31:11 2017
     VNCSConnST:  Client pixel format depth 24 (32bpp) little-endian rgb888
    BluezQt: PendingCall Error: "Activation of org.bluez timed out"
    QXcbConnection: XCB error: 3 (BadWindow), sequence: 8053, resource id: 41943238, major code: 18 (ChangeProperty), minor code: 0
    QXcbConnection: XCB error: 3 (BadWindow), sequence: 8058, resource id: 41943239, major code: 18 (ChangeProperty), minor code: 0
    QXcbConnection: XCB error: 8 (BadMatch), sequence: 8069, resource id: 41943078, major code: 42 (SetInputFocus), minor code: 0
    QXcbConnection: XCB error: 8 (BadMatch), sequence: 8096, resource id: 41943078, major code: 42 (SetInputFocus), minor code: 0
    QXcbConnection: XCB error: 3 (BadWindow), sequence: 8278, resource id: 6291460, major code: 18 (ChangeProperty), minor code: 0
    Creating the cache for:  "applications:YaST.desktop"
    Already in database?  true
          First update :  QDateTime(2017-02-05 15:27:07.000 GMT Qt::TimeSpec(LocalTime))
           Last update :  QDateTime(2017-02-13 11:20:46.000 GMT Qt::TimeSpec(LocalTime))
    After the adjustment
         Current score :  3.54306
          First update :  QDateTime(2017-02-05 15:27:07.000 GMT Qt::TimeSpec(LocalTime))
           Last update :  QDateTime(2017-02-13 11:20:46.000 GMT Qt::TimeSpec(LocalTime))
    Interval length is  0
             New score :  4.54306
    QXcbConnection: XCB error: 3 (BadWindow), sequence: 10034, resource id: 6291479, major code: 18 (ChangeProperty), minor code: 0
    QXcbConnection: XCB error: 3 (BadWindow), sequence: 13027, resource id: 67109068, major code: 15 (QueryTree), minor code: 0
    
    Mon Feb 13 11:32:04 2017
     Connections: closed: 10.0.0.27::59635 (Destination rect 13x21 at 0,0 exceeds
                  framebuffer 7x21)
     EncodeManager: Framebuffer updates: 1510
     EncodeManager:   CopyRect:
     EncodeManager:     Copies: 4 rects, 4 pixels
     EncodeManager:             64 B (1:1 ratio)
     EncodeManager:   RRE:
     EncodeManager:     Solid: 295 rects, 409.754 kpixels
     EncodeManager:            5.76172 KiB (1:278.399 ratio)
     EncodeManager:   Hextile:
     EncodeManager:     Bitmap RLE: 84 rects, 143.2 kpixels
     EncodeManager:                 2.99805 KiB (1:186.908 ratio)
     EncodeManager:     Indexed RLE: 803 rects, 2.58966 Mpixels
     EncodeManager:                  276.231 KiB (1:36.655 ratio)
     EncodeManager:     Full Colour: 2.401 krects, 17.5905 Mpixels
     EncodeManager:                  8.66412 MiB (1:7.74804 ratio)
     EncodeManager:   ZRLE:
     EncodeManager:     Bitmap RLE: 2 rects, 130.56 kpixels
     EncodeManager:                 432 B (1:302.278 ratio)
     EncodeManager:     Indexed RLE: 15 rects, 893.713 kpixels
     EncodeManager:                  16.8242 KiB (1:51.8861 ratio)
     EncodeManager:   Total: 3.604 krects, 21.7574 Mpixels
     EncodeManager:          8.95933 MiB (1:8.94136 ratio)

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