Opening new windows causes events to be directed at the window that was previously selected. Some applications do not handle this well and close with errors. vncviewer is one example. Reproducible: Always Steps to Reproduce: 1.Open vncviewer window 2.open anything else 3. Actual Results: vncviewer closes Expected Results: New window opens and does not cause other windows to close Console output of vncviewer as follows ~ ))): vncviewer -encoding "copyrect tight hextile zlib corre rre raw" :1 Connected to RFB server, using protocol version 3.8 Performing standard VNC authentication Password: Authentication successful Desktop name "remote:3 (root)" VNC server default format: 32 bits per pixel. Least significant byte first in each pixel. True colour: max red 255 green 255 blue 255, shift red 16 green 8 blue 0 Warning: Cannot convert string "-*-helvetica-bold-r-*-*-16-*-*-*-*-*-*-*" to type FontStruct Using default colormap which is TrueColor. Pixel format: 32 bits per pixel. Least significant byte first in each pixel. True colour: max red 255 green 255 blue 255, shift red 16 green 8 blue 0 CleanupXtErrorHandler called Error: Event with wrong window This error is thrown as soon as another application is launched.
does this only happen with kwin? Can you try with e.g. openbox whether the problem can be reproduced there as well?
That sounds as if the vnc viewer selected substructure notification events on the root window and the default Xt error handler notices that "I got an event for an X drawable that's none of mine - I better kill myself" This sounds more like a bug in the client (toolkit, libxt) - maybe in the X11 server. I've no idea how KWin could get events into vncviewer which that didn't select. The next question would be what kind of ancient version of vncviewer that is - since tigervnc uses fltk. Or is it tightvnc???
tightvnc. It didn't happen when I was running KDE 4.13 OpenSuSE Tumbleweed just moved from KDE 4 to Plasma 5. Sorry if it's not a Kwin issue, but I assumed it might be as the compositor might be responsible for the windows, well more so than the rest of plasma. If you need me to test anything or enable debugging or anything, I am more than happy to assist.
can you please test with another window manager, e.g. openbox? This is required to figure out whether it's kwin's fault or not.
Just fired up in an openbox session. I opened everything I could find. No issues here until I opened yast2 with kdesu. But like I said, under KDE4, it never happened. So it could be elsewhere in the KDE stack.
(In reply to Mal Haak from comment #5) > Just fired up in an openbox session. > > I opened everything I could find. > > No issues here until I opened yast2 with kdesu. > > But like I said, under KDE4, it never happened. > > So it could be elsewhere in the KDE stack. Same in TWM. But in Plasma5 everything kills it.
You can btw. just "openbox --replace &" in a KDE session. I assume the issue still occurs (in KDE+Openbox instead of KDE+KWin)? Wild guess: in KDE, "pkill kglobalaccel5" (global shortcuts inc. Alt+tab will stop working, that's normal) Then see what happens.
(In reply to Thomas Lübking from comment #7) > You can btw. just "openbox --replace &" in a KDE session. > I assume the issue still occurs (in KDE+Openbox instead of KDE+KWin)? > > Wild guess: > in KDE, "pkill kglobalaccel5" (global shortcuts inc. Alt+tab will stop > working, that's normal) > Then see what happens. Doing this 'fixes' it. Loading 'systemsettings5' kills it tho, which I assume is because it also starts kglobalaccel5 if its missing.
hmmm... installed tightvnc, but cannot reproduce the behavior (nor do I have a good idea what kind of root event kglobalaccel could generate that vncviewer could stumble on - nor why latter would listen to root window events) Is the server dialog a sufficient trigger or does one need an established connection?
Hi Thomas, It needs to be connected. It doesn't seem to happen with the server dialog for me either. Thanks for looking into this.
Nope - just to be sure: KDE runs in the host, not in the vncviewer, does it? There might be something else - any relation to anything running inside the vnc server (tried an empty session?) Does it matter whether server & client run on the same machine? In case somebody else wants to try as well: $ cat /etc/tightvncserver.conf $fontPath = "/usr/share/fonts/misc/:/usr/share/fonts/TTF/:/usr/share/fonts/100dpi/:/usr/share/fonts/75dpi/:/usr/share/fonts/Type1"; or you'll get an error on starting the not-so-fresh-anymore vncserver from tightvnc ;-)
(In reply to Thomas Lübking from comment #11) > Nope - just to be sure: KDE runs in the host, not in the vncviewer, does it? Both this case. Client is my laptop (OpenSuse Tumbleweed) and server is running KDE (Centos 7.1) Vncserver is tigervnc, I believe. > There might be something else - any relation to anything running inside the > vnc server (tried an empty session?) Just tried a 'fallback session', so twm, xterm and such. An empty session and a Gnome session. All have the same behavour. > Does it matter whether server & client run on the same machine? Just tested it. It does not matter. Can I enable some logging or something? Or get some strace output?
[darwin@cube 4] ~ > Connected to RFB server, using protocol version 3.8 No authentication needed Authentication successful Desktop name "zotac:0" VNC server default format: 32 bits per pixel. Least significant byte first in each pixel. True colour: max red 255 green 255 blue 255, shift red 16 green 8 blue 0 Warning: Cannot convert string "-*-helvetica-bold-r-*-*-16-*-*-*-*-*-*-*" to type FontStruct Using default colormap which is TrueColor. Pixel format: 32 bits per pixel. Least significant byte first in each pixel. True colour: max red 255 green 255 blue 255, shift red 16 green 8 blue 0 CleanupXtErrorHandler called Error: Event with wrong window
You could try to create a window rule ("kcmshell5 kwinrules" or Alt+f3/More actions/Special window settings) that in "Appearance & Fixes" sets the window to "ignore global shortcuts" (force & yes) Could be kglobalaccel forwards the input that opened the other window to the vnc client (but it's really just a wild guess) It would likely be required to patch libxt to debug the event that it doesn't like :-(
Run vncviewer -> press alt+f3 -> more actions -> special application settings... -> crashed always: We are sorry, kdeinit5 closed unexpectedly. Executable: kdeinit5 PID: 8460 Signal: Segmentation fault (11) Time: 6/5/15 12:08:28 Application: kdeinit5 (kdeinit5), signal: Segmentation fault Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [Current thread is 1 (Thread 0x7ff7db05f780 (LWP 8460))] Thread 2 (Thread 0x7ff7c8459700 (LWP 8461)): #0 0x00007ff7d975e8dd in poll () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007ff7d7cf5b72 in poll (__timeout=-1, __nfds=1, __fds=0x7ff7c8458d40) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46 #2 _xcb_conn_wait (c=c@entry=0x20fff10, cond=cond@entry=0x20fff50, vector=vector@entry=0x0, count=count@entry=0x0) at ../../src/xcb_conn.c:447 #3 0x00007ff7d7cf764f in xcb_wait_for_event (c=0x20fff10) at ../../src/xcb_in.c:622 #4 0x00007ff7cb8f9099 in QXcbEventReader::run (this=0x210a890) at qxcbconnection.cpp:1105 #5 0x00007ff7d9ad0b0e in QThreadPrivate::start (arg=0x210a890) at thread/qthread_unix.cpp:337 #6 0x00007ff7d74496aa in start_thread (arg=0x7ff7c8459700) at pthread_create.c:333 #7 0x00007ff7d9769eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 1 (Thread 0x7ff7db05f780 (LWP 8460)): [KCrash Handler] #6 xcb_send_request (c=0x0, flags=flags@entry=1, vector=vector@entry=0x7ffd3c4130c0, req=req@entry=0x7ff7d7d032a0 <xcb_req>) at ../../src/xcb_out.c:160 #7 0x00007ff7d7cfb269 in xcb_get_property (c=<optimized out>, _delete=<optimized out>, window=<optimized out>, property=<optimized out>, type=<optimized out>, long_offset=<optimized out>, long_length=100000) at xproto.c:3901 #8 0x00007ff7da71e470 in NETWinInfo::update (this=0x7ffd3c413620, dirtyProperties=..., dirtyProperties2=...) at ../../src/netwm.cpp:4161 #9 0x00007ff7cb623443 in KWin::ClientMachine::resolve (this=0x7ffd3c4137c0, window=20971537, clientLeader=0) at ../../../kcmkwin/kwinrules/../../client_machine.cpp:179 #10 0x00007ff7cb5fc44f in findRule (whole_app=true, wid=20971537, rules=...) at ../../../kcmkwin/kwinrules/main.cpp:77 #11 edit (whole_app=true, wid=20971537) at ../../../kcmkwin/kwinrules/main.cpp:212 #12 kdemain (argc=4, argv=<optimized out>) at ../../../kcmkwin/kwinrules/main.cpp:266 #13 0x0000000000408716 in launch (argc=argc@entry=4, _name=_name@entry=0x20e02f8 "kwin_rules_dialog", args=<optimized out>, args@entry=0x20e030a "--wid", cwd=cwd@entry=0x0, envc=envc@entry=0, envs=<optimized out>, envs@entry=0x20e032d "", reset_env=false, tty=0x0, avoid_loops=false, startup_id_str=0x40b710 "0") at ../../../src/kdeinit/kinit.cpp:741 #14 0x000000000040a132 in handle_launcher_request (sock=8, who=who@entry=0x40b6c6 "launcher") at ../../../src/kdeinit/kinit.cpp:1180 #15 0x000000000040a6ee in handle_requests (waitForPid=waitForPid@entry=0) at ../../../src/kdeinit/kinit.cpp:1369 #16 0x000000000040501b in main (argc=5, argv=<optimized out>) at ../../../src/kdeinit/kinit.cpp:1860
Ah, blast. Unrelated bug, fixed in 5.3.2. No problem, though: just run "kcmshell5 kwinrules" and use the "detect" button to match the window (you just got to click it afterwards)
Done creating rules for vncviewer (ignore global shortcuts, force, and yes option). Did not help, still crashed.
Does it matter how you open the next window (eg. "$ sleep 5; xterm")? Random option for investigation: $ xev -id <WID> # obtain <WID> eg. using "xwininfo" => cause the crash and let's see what the last events were, that the window received.
Seems in Shell.c in libxt:amd64 package: static void EventHandler( Widget wid, XtPointer closure, /* unused */ XEvent *event, Boolean *continue_to_dispatch) /* unused */ { register ShellWidget w = (ShellWidget) wid; WMShellWidget wmshell = (WMShellWidget) w; Boolean sizechanged = FALSE; if(w->core.window != event->xany.window) { XtAppErrorMsg(XtWidgetToApplicationContext(wid), "invalidWindow","eventHandler",XtCXtToolkitError, "Event with wrong window", (String *)NULL, (Cardinal *)NULL); return; } Breakpoint 1, EventHandler (wid=0x68f4f0, closure=0x0, event=0x7fffffffe020, continue_to_dispatch=0x7fffffffdeb5 "\001") at Shell.c:1569 1569 XtAppErrorMsg(XtWidgetToApplicationContext(wid), (gdb) bt #0 EventHandler (wid=0x68f4f0, closure=0x0, event=0x7fffffffe020, continue_to_dispatch=0x7fffffffdeb5 "\001") at Shell.c:1569 #1 0x00007ffff7b86a40 in XtDispatchEventToWidget (widget=0x68f4f0, event=0x7fffffffe020) at Event.c:882 #2 0x00007ffff7b87754 in _XtDefaultDispatcher (event=0x7fffffffe020) at Event.c:1344 #3 0x00007ffff7b87b64 in XtDispatchEvent (event=0x7fffffffe020) at Event.c:1423 #4 0x00007ffff7b9802f in XtAppProcessEvent (app=0x6730e0, mask=15) at NextEvent.c:1397 #5 0x000000000041515d in ProcessXtEvents () #6 0x00000000004153b0 in ReadFromRFBServer () #7 0x000000000040c9d9 in HandleRFBServerMessage () #8 0x00000000004169eb in main () (gdb) print w->core.window $1 = 20971563 (gdb) print event->xany.window $2 = 153 (gdb) print *w $3 = {core = {self = 0x68f4f0, widget_class = 0x7ffff7dd6040 <applicationShellClassRec>, parent = 0x0, xrm_name = 167, being_destroyed = 0 '\000', destroy_callbacks = 0x68aa30, constraints = 0x0, x = 1284, y = 26, width = 845, height = 632, border_width = 0, managed = 0 '\000', sensitive = 1 '\001', ancestor_sensitive = 1 '\001', event_table = 0x689ac0, tm = { translations = 0x6b28e0, proc_table = 0x6b2640, current_state = 0x0, lastEventTime = 0}, accelerators = 0x0, border_pixel = 0, border_pixmap = 2, popup_list = 0x68b000, num_popups = 2, name = 0x670860 "vncviewer", screen = 0x67f110, colormap = 32, window = 20971563, depth = 24, background_pixel = 0, background_pixmap = 2, visible = 1 '\001', mapped_when_managed = 1 '\001'}, composite = {children = 0x6b1010, num_children = 1, num_slots = 2, insert_position = 0x0}, shell = { geometry = 0x6b0ed0 "1280x1000+638+0", create_popup_child_proc = 0x0, grab_kind = XtGrabNone, spring_loaded = 0 '\000', popped_up = 0 '\000', allow_shell_resize = 0 '\000', client_specified = 9 '\t', save_under = 0 '\000', override_redirect = 0 '\000', popup_callback = 0x0, popdown_callback = 0x0, visual = 0x0}} (gdb) print *event $4 = {type = 33, xany = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, window = 153}, xkey = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, window = 153, root = 381, subwindow = 8, time = 2322280117212898674, x = 1664959561, y = 996500085, x_root = 858993713, y_root = 0, state = 16777216, keycode = 83886080, same_screen = 268435456}, xbutton = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, window = 153, root = 381, subwindow = 8, time = 2322280117212898674, x = 1664959561, y = 996500085, x_root = 858993713, y_root = 0, state = 16777216, button = 83886080, same_screen = 268435456}, xmotion = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, window = 153, root = 381, subwindow = 8, time = 2322280117212898674, x = 1664959561, y = 996500085, x_root = 858993713, y_root = 0, state = 16777216, is_hint = 0 '\000', same_screen = 268435456}, xcrossing = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, window = 153, root = 381, subwindow = 8, time = 2322280117212898674, x = 1664959561, y = 996500085, x_root = 858993713, y_root = 0, mode = 16777216, detail = 83886080, same_screen = 268435456, focus = -1, state = 4283256141}, xfocus = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, window = 153, mode = 381, detail = 0}, xexpose = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, window = 153, x = 381, y = 0, width = 8, height = 0, count = 1869440370}, xgraphicsexpose = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, drawable = 153, x = 381, y = 0, width = 8, height = 0, count = 1869440370, major_code = 540697974, minor_code = 1664959561}, xnoexpose = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, drawable = 153, major_code = 381, minor_code = 0}, xvisibility = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, window = 153, state = 381}, xcreatewindow = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, parent = 153, window = 381, x = 8, y = 0, width = 1869440370, height = 540697974, border_width = 1664959561, override_redirect = 996500085}, xdestroywindow = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, event = 153, window = 381}, xunmap = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, event = 153, window = 381, from_configure = 8}, xmap = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, event = 153, window = 381, override_redirect = 8}, xmaprequest = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, parent = 153, window = 381}, xreparent = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, event = 153, window = 381, parent = 8, x = 1869440370, y = 540697974, override_redirect = 1664959561}, xconfigure = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, event = 153, window = 381, x = 8, y = 0, width = 1869440370, height = 540697974, border_width = 1664959561, above = 858993713, override_redirect = 16777216}, xgravity = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, event = 153, window = 381, x = 8, y = 0}, xresizerequest = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, window = 153, width = 381, height = 0}, xconfigurerequest = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, parent = 153, window = 381, x = 8, y = 0, width = 1869440370, height = 540697974, border_width = 1664959561, above = 858993713, detail = 16777216, value_mask = 18446744069683019776}, xcirculate = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, event = 153, window = 381, place = 8}, xcirculaterequest = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, parent = 153, window = 381, place = 8}, xproperty = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, window = 153, atom = 381, time = 8, state = 1869440370}, xselectionclear = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, window = 153, selection = 381, time = 8}, xselectionrequest = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, owner = 153, requestor = 381, selection = 8, target = 2322280117212898674, property = 4279935277201179721, time = 858993713}, xselection = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, requestor = 153, selection = 381, target = 8, property = 2322280117212898674, time = 4279935277201179721}, xcolormap = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, window = 153, colormap = 381, new = 8, state = 0}, xclient = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, window = 153, message_type = 381, format = 8, data = {b = "remove: ID=cube;1433", s = {25970, 28525, 25974, 8250, 17481, 25405, 25205, 15205, 13361, 13107}, l = {2322280117212898674, 4279935277201179721, 858993713, 360287970206416896, -4026531840}}}, xmapping = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, window = 153, request = 381, first_keycode = 0, count = 8}, xerror = {type = 33, display = 0x196, resourceid = 72057594037927937, serial = 6767536, error_code = 153 '\231', request_code = 0 '\000', minor_code = 0 '\000'}, xkeymap = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, window = 153, key_vector = "}\001\000\000\000\000\000\000\b\000\000\000\000\000\000\000remove: ID=cube;"}, xgeneric = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, extension = 153, evtype = 0}, xcookie = {type = 33, serial = 406, send_event = 1, display = 0x6743b0, extension = 153, evtype = 0, cookie = 381, data = 0x8}, pad = {9108927621026021409, 406, 72057594037927937, 6767536, 153, 381, 8, 2322280117212898674, 4279935277201179721, 858993713, 360287970206416896, -4026531840, -50299023440130739, -50299023440130739, -50299023440130739, -50299023440130739, 2017612637356949503, 432345564479225856, 33554432, 0, 0, 0, 0, 0}} (gdb)
[01:22:55 - 0.17] [root@cube 13] ~ > xwininfo xwininfo: Please select the window about which you would like information by clicking the mouse in that window. xwininfo: Window id: 0x1400029 "TightVNC: zotac:0" Absolute upper-left X: 1448 Absolute upper-left Y: 172 Relative upper-left X: 0 Relative upper-left Y: 0 Width: 845 Height: 632 Depth: 24 Visual: 0x23 Visual Class: TrueColor Border width: 0 Class: InputOutput Colormap: 0x20 (not installed) Bit Gravity State: NorthWestGravity Window Gravity State: NorthWestGravity Backing Store State: NotUseful Save Under State: no Map State: IsViewable Override Redirect State: no Corners: +1448+172 -267+172 -267-220 +1448-220 -geometry 845x632+1444+146 [01:23:01 - 0.23] [root@cube 14] ~ > xev -id 0x1400029 EnterNotify event, serial 18, synthetic NO, window 0x1400029, root 0x99, subw 0x140002a, time 11189217, (25,188), root:(1473,360), mode NotifyNormal, detail NotifyNonlinearVirtual, same_screen YES, focus NO, state 16 KeymapNotify event, serial 18, synthetic NO, window 0x0, keys: 4294967237 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PropertyNotify event, serial 18, synthetic NO, window 0x1400029, atom 0x2cd (_XT_SELECTION_0), time 11189225, state PropertyNewValue PropertyNotify event, serial 19, synthetic NO, window 0x1400029, atom 0x2cd (_XT_SELECTION_0), time 11189226, state PropertyDelete PropertyNotify event, serial 19, synthetic NO, window 0x1400029, atom 0x2ce (_XT_SELECTION_1), time 11189226, state PropertyNewValue PropertyNotify event, serial 20, synthetic NO, window 0x1400029, atom 0x2ce (_XT_SELECTION_1), time 11189227, state PropertyDelete LeaveNotify event, serial 20, synthetic NO, window 0x1400029, root 0x99, subw 0x140002a, time 11189733, (-48,244), root:(1400,416), mode NotifyNormal, detail NotifyNonlinearVirtual, same_screen YES, focus NO, state 16 ColormapNotify event, serial 20, synthetic NO, window 0x1400029, colormap 0x20, new NO, state ColormapInstalled PropertyNotify event, serial 20, synthetic NO, window 0x1400029, atom 0x1ca (_NET_WM_ICON_GEOMETRY), time 11194732, state PropertyNewValue PropertyNotify event, serial 20, synthetic NO, window 0x1400029, atom 0x1ca (_NET_WM_ICON_GEOMETRY), time 11194732, state PropertyNewValue PropertyNotify event, serial 21, synthetic NO, window 0x1400029, atom 0x1ca (_NET_WM_ICON_GEOMETRY), time 11194830, state PropertyNewValue PropertyNotify event, serial 21, synthetic NO, window 0x1400029, atom 0x1ca (_NET_WM_ICON_GEOMETRY), time 11194830, state PropertyNewValue ColormapNotify event, serial 21, synthetic NO, window 0x1400029, colormap 0x20, new NO, state ColormapUninstalled UnmapNotify event, serial 21, synthetic NO, window 0x1400029, event 0x1400029, window 0x1400029, from_configure NO DestroyNotify event, serial 21, synthetic NO, window 0x1400029, event 0x1400029, window 0x140002a DestroyNotify event, serial 21, synthetic NO, window 0x1400029, event 0x1400029, window 0x1400029
As suspected (comment #2) - but many thanks for the stack inspection. > type = 33 lol - xt aborts on ClientMessages =) Can you check what WId 153 is? ("xwininfo -int -id 153") I don't see where kglobalaccel would send client messages (but kwin does - all WMs do) - also the message data ("remove: ID=cube;1433") looks weird. Did anybody check whether "openbox --replace &" (replace kwin_x11 with openbox in a KDE session, ie. keep kglobalacceld running) does have any impact?
xwininfo: Window id: 153 (the root window) (has no name) Root window id: 153 (the root window) (has no name) Parent window id: 0 (none) 268 children: 92274856 "Intl. LunchClub - Skype™": ("skype" "Skype") 1280x968+1280+26 +1280+26 92274836 "skype": ("skype" "Skype") 268x74+2291+919 +2291+919 75674072 "Firefox": ("Popup" "Firefox") 298x275+1569+568 +1569+568 1 child: 75674073 (has no name): () 1x1+-1+-1 +1568+567 75509017 "Close Tab": ("Popup" "Firefox") 71x25+1881+34 +1881+34 1 child: 75509018 (has no name): () 1x1+-1+-1 +1880+33 50331780 "konsole": ("konsole" "konsole") 282x141+373+634 +373+634 75697174 "Firefox": ("Popup" "Firefox") 204x223+2088+62 +2088+62 1 child: 75697175 (has no name): () 1x1+-1+-1 +2087+61 46137625 "Plasma": ("plasmashell" "plasmashell") 430x1+832+994 +832+994 46137429 "Plasma": ("plasmashell" "plasmashell") 430x1+2112+994 +2112+994 46137414 "Plasma": ("plasmashell" "plasmashell") 430x1+2112+994 +2112+994 75721819 "Firefox": ("Popup" "Firefox") 740x284+1341+62 +1341+62 1 child: 75721820 (has no name): () 1x1+-1+-1 +1340+61 75667228 "Your Connections": ("Popup" "Firefox") 123x25+1939+105 +1939+105 1 child: 75667229 (has no name): () 1x1+-1+-1 +1938+104 46137622 "Plasma": ("plasmashell" "plasmashell") 430x82+832+942 +832+942 46137426 "Plasma": ("plasmashell" "plasmashell") 430x1+2112+894 +2112+894 46137417 "Plasma": ("plasmashell" "plasmashell") 430x1+2112+863 +2112+863 46137638 "Plasma": ("plasmashell" "plasmashell") 394x394+886+603 +886+603 46137619 "Plasma": ("plasmashell" "plasmashell") 430x1+832+891 +832+891 46137423 "Plasma": ("plasmashell" "plasmashell") 430x1+2112+994 +2112+994 46137420 "Plasma": ("plasmashell" "plasmashell") 430x1+2112+891 +2112+891 46137442 "Plasma": ("plasmashell" "plasmashell") 394x394+2166+600 +2166+600 75717557 "Firefox": ("Popup" "Firefox") 118x169+1608+46 +1608+46 1 child: 75717558 (has no name): () 1x1+-1+-1 +1607+45 60817427 "Kopete": ("kopete" "Kopete") 300x943+2252+0 +2252+0 46137436 "Plasma": ("plasmashell" "plasmashell") 484x628+1280+366 +1280+366 20971521 (has no name): () 1x1+0+0 +0+0 46137635 "Plasma": ("plasmashell" "plasmashell") 457x394+823+603 +823+603 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52428806 (has no name): () 1x1+0+0 +0+0 52428805 (has no name): () 3x3+0+0 +0+0 52428804 (has no name): () 1x1+0+0 +0+0 52428802 (has no name): () 1x1+0+0 +0+0 46137358 "Plasma": ("plasmashell" "plasmashell") 160x160+0+0 +0+0 50331653 (has no name): () 3x3+0+0 +0+0 50331652 (has no name): () 1x1+0+0 +0+0 50331650 (has no name): () 1x1+0+0 +0+0 33554437 (has no name): () 3x3+0+0 +0+0 33554436 (has no name): () 1x1+0+0 +0+0 33554434 (has no name): () 1x1+0+0 +0+0 46137349 (has no name): () 3x3+0+0 +0+0 46137348 (has no name): () 1x1+0+0 +0+0 46137346 (has no name): () 1x1+0+0 +0+0 44040197 (has no name): () 3x3+0+0 +0+0 44040196 (has no name): () 1x1+0+0 +0+0 44040194 (has no name): () 1x1+0+0 +0+0 37748742 (has no name): () 1x1+0+0 +0+0 39845902 "krunner": ("krunner" "krunner") 160x160+0+0 +0+0 39845893 (has no name): () 3x3+0+0 +0+0 39845892 (has no name): () 1x1+0+0 +0+0 39845890 (has no name): () 1x1+0+0 +0+0 23068679 (has no name): () 1x1+0+0 +0+0 37748741 (has no name): () 3x3+0+0 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+-1+-1 10485761 "ibus-ui-gtk3": ("ibus-ui-gtk3" "Ibus-ui-gtk3") 10x10+10+10 +10+10 1 child: 10485762 (has no name): () 1x1+-1+-1 +9+9 6291459 "ibus-xim": () 1x1+0+0 +0+0 1 child: 6291460 (has no name): () 1x1+-1+-1 +-1+-1 6291457 "ibus-x11": ("ibus-x11" "Ibus-x11") 10x10+10+10 +10+10 1 child: 6291458 (has no name): () 1x1+-1+-1 +9+9 2097153 (has no name): () 10x10+-20+-20 +-20+-20 52428808 "KWin": () 1x1+0+0 +0+0 52428825 (has no name): () 1280x30+1280+994 +1280+994 1 child: 52428826 (has no name): () 1280x30+0+0 +1280+994 1 child: 46137381 "Plasma": ("plasmashell" "plasmashell") 1280x30+0+0 +1280+994 52429010 (has no name): () 1280x27+0+997 +0+997 1 child: 52429011 (has no name): () 1280x27+0+0 +0+997 1 child: 46137613 "Plasma": ("plasmashell" "plasmashell") 1280x27+0+0 +0+997 52428828 (has no name): () 1280x27+1280+997 +1280+997 1 child: 52428829 (has no name): () 1280x27+0+0 +1280+997 1 child: 46137388 "Plasma": ("plasmashell" "plasmashell") 1280x27+0+0 +1280+997 52428814 (has no name): () 1280x997+0+0 +0+0 1 child: 52428815 (has no name): () 1280x997+0+0 +0+0 1 child: 50331655 "shell": ("konsole" "konsole") 1280x997+0+0 +0+0 52429021 (has no name): () 1280x994+1280+0 +1280+0 1 child: 52429022 (has no name): () 1280x994+0+0 +1280+0 1 child: 75498709 "xwininfo(1): window info utility for X - Linux man page - Mozilla Firefox": ("Navigator" "Firefox") 1280x994+0+0 +1280+0 1 child: 75498710 (has no name): () 1x1+-1+-1 +1279+-1 52429791 (has no name): () 1280x994+1280+0 +1280+0 1 child: 52429792 (has no name): () 1280x968+0+26 +1280+26 1 child: 83886086 "Untitled * — Kate": ("kate" "kate") 1280x968+0+0 +1280+26 52428846 (has no name): () 1280x994+1280+0 +1280+0 1 child: 52428847 (has no name): () 1280x968+0+26 +1280+26 1 child: 54525959 "Downloads – Dolphin": ("dolphin" "Dolphin") 1280x968+0+0 +1280+26 52428850 (has no name): () 1280x994+1280+0 +1280+0 1 child: 52428851 (has no name): () 1280x968+0+26 +1280+26 1 child: 69206170 "Inbox - Mozilla Thunderbird": ("Mail" "Thunderbird") 1280x968+0+0 +1280+26 1 child: 69206171 (has no name): () 1x1+-1+-1 +1279+25 52428917 (has no name): () 248x872+2294+30 +2294+30 1 child: 52428918 (has no name): () 240x842+4+26 +2298+56 1 child: 92274722 "Skype™": ("skype" "Skype") 240x842+0+0 +2298+56 52428875 (has no name): () 1280x997+0+0 +0+0 1 child: 52428876 (has no name): () 1280x971+0+26 +0+26 1 child: 85983235 "Home - VMware Workstation": ("vmware" "Vmware") 1280x971+0+0 +0+26 1 child: 85983236 (has no name): () 1x1+-1+-1 +-1+25 52429871 (has no name): () 1280x994+1280+0 +1280+0 1 child: 52429872 (has no name): () 1280x968+0+26 +1280+26 1 child: 56623112 "Akregator": ("akregator" "Akregator") 1280x968+0+0 +1280+26 52428842 (has no name): () 1280x994+1280+0 +1280+0 1 child: 52428843 (has no name): () 1280x994+0+0 +1280+0 1 child: 75497626 "New Tab - Mozilla Firefox": ("Navigator" "Firefox") 1280x994+0+0 +1280+0 1 child: 75497627 (has no name): () 1x1+-1+-1 +1279+-1 52428822 (has no name): () 1280x1024+0+0 +0+0 1 child: 52428823 (has no name): () 1280x1024+0+0 +0+0 1 child: 46137370 "Desktop — Plasma": ("plasmashell" "plasmashell") 1280x1024+0+0 +0+0 52428819 (has no name): () 1280x1024+1280+0 +1280+0 1 child: 52428820 (has no name): () 1280x1024+0+0 +1280+0 1 child: 46137364 "Desktop — Plasma": ("plasmashell" "plasmashell") 1280x1024+0+0 +1280+0 52429050 (has no name): () 1280x994+1280+0 +1280+0 52429049 (has no name): () 1280x994+1280+0 +1280+0 52429048 (has no name): () 1280x997+0+0 +0+0 52429047 (has no name): () 1280x994+1280+0 +1280+0 52429046 (has no name): () 1280x994+1280+0 +1280+0 52429045 (has no name): () 1280x994+1280+0 +1280+0 52429044 (has no name): () 248x872+2294+30 +2294+30 52429043 (has no name): () 1280x994+1280+0 +1280+0 52429042 (has no name): () 1280x1001+0+0 +0+0 Absolute upper-left X: 0 Absolute upper-left Y: 0 Relative upper-left X: 0 Relative upper-left Y: 0 Width: 2560 Height: 1024 Depth: 24 Visual: 0x23 Visual Class: TrueColor Border width: 0 Class: InputOutput Colormap: 0x20 (not installed) Bit Gravity State: NorthWestGravity Window Gravity State: NorthWestGravity Backing Store State: NotUseful Save Under State: no Map State: IsViewable Override Redirect State: no Corners: +0+0 -0+0 -0-0 +0-0 -geometry 2560x1024+0+0 Bit gravity: NorthWestGravity Window gravity: NorthWestGravity Backing-store hint: NotUseful Backing-planes to be preserved: 0xffffffff Backing pixel: 0 Save-unders: No Someone wants these events: KeyPress KeyRelease EnterWindow LeaveWindow KeymapState Exposure StructureNotify SubstructureNotify SubstructureRedirect FocusChange PropertyChange ColormapChange Do not propagate these events: Override redirection?: No Window manager hints: Process id: (unknown) No normal window size hints defined No zoom window size hints defined No window shape defined No border shape defined [02:42:49 - 0.26] [darwin@cube 143] ~/Downloads/ >
So "something™" sends a client message to the root window and for "some™" reason (involving kglobalacceld), tightvnc picks that event "unprepared". > 10485761 "ibus-ui-gtk3": ("ibus-ui-gtk3" "Ibus-ui-gtk3") 10x10+10+10 +10+10 > 6291459 "ibus-xim": () 1x1+0+0 +0+0 > 6291457 "ibus-x11": ("ibus-x11" "Ibus-x11") 10x10+10+10 +10+10 @Mal, do you have ibus windows as well? $ xwininfo -tree -root | grep -i ibus
Hi, I am now using Kubuntu Xenial 16.04 and still see this crash. Any suggestion how to fix? Need debug info I can provide.
The "crash" itself is an abort in xt - it could only be reliably prevented there (by not aborting just because there's one - makes "crashing" it from outside a bit very easy) We don't even know what sends the client message or why it ends up on the root window. => I'd try to stop ibus and see whether it's still a problem (to see whether there's a unhealthy partnership)
I can confirm the described behaviour (using KDE 16.04.1 with Gentoo).
Is there any progress with this bug?
> The "crash" itself is an abort in xt - it could only be reliably prevented there Did anyone report the abort to xt? I don't think there is anything from our side which could be done. The crash needs to be fixed in the affected applications.
Thanks for the feedback. Now I'm using TigerVNC instead of TightVNC and everything works as expected. So it must be a bug in TightVNC.
Created attachment 108292 [details] screenshot of error message screenshot of error message
Created attachment 108293 [details] screenshot of setting Settings used in GDB plugin
This bug report isn't really actionable currently, so I am going to close it. If you are still encountering problems with recent Plasma please file a new report