x2go-dev March 2015

x2go-dev@lists.x2go.org

39 participants
196 discussions

Bug#150: Cinnamon 2.2 does not work
by Michael DePaulo 20 Feb '16

20 Feb '16

I just tested Cinnamon 2.2.13 and it does not work properly with X2Go. Basically, Cinnamon resorts fo "fallback mode", which is not the same as Cinnamon2d. More details are below. Note that GLX is enabled, and I ran the "Custom Desktop" command: cinnamon-session-cinnamon2d ---- When I connect, only gnome-panel is running. (Basically, gnome-flashback is running, although package gnome-session-flashback is not installed) It is very different from cinnamon2d, which works locally, and there are many bugs in this version of gnome-panel/gnome-flashback. For example, you cannot even set a desktop background using the GUIs. I also see a dialog with the text: Do you want to restart Cinnamon? Cinnamon just crashed. You are currently running in Fallback Mode. If I click yes, the dialog comes back up. If I click No, I the dialog closes, and the session is usable, but it's very buggy for aforementioned reasons. This is just a VM I setup for the specific purpose of testing Cinnamon compatibility with X2Go. I have the GLX extension enabled on my test system (/etc/x2go/x2goagent.options has the line to disable GLX commented out) - Linux mint 17 qiana (based on Ubuntu 12.04 trusty) 64-bit - All latest level 1, 2 and 3 OS updates installed. - cinnamon version 2.2.13 - Custom Desktop specified in x2goclient: cinnamon-session-cinnamon2d - x2goserver & x2goserver-xsession: 4.0.1.15-0~847~ubuntu14.04.1 - nxagent & x2goagent: 2:3.5.0.27-0~446~ubuntu14.04.1 I've attached the contents of my .xsession-x2go-errors file. Note the following session files: batmin@mint-q /usr/share/cinnamon-session/sessions $ ls cinnamon2d.session cinnamon.session batmin@mint-q /usr/share/cinnamon-session/sessions $ cat cinnamon2d.session [Cinnamon Session] Name=Cinnamon (Software Rendering) RequiredComponents=cinnamon;cinnamon-settings-daemon;cinnamon-screensaver;nemo-autostart;nm-applet; DesktopName=X-Cinnamon batmin@mint-q /usr/share/xsessions $ ls cinnamon2d.desktop cinnamon.desktop batmin@mint-q /usr/share/xsessions $ cat cinnamon2d.desktop [Desktop Entry] Name=Cinnamon (Software Rendering) Comment=This session logs you into Cinnamon (using software rendering) Exec=cinnamon-session-cinnamon2d TryExec=/usr/bin/cinnamon2d Icon= Type=Application X-Ubuntu-Gettext-Domain=cinnamon X-GNOME-Provides=cinnamon2d batmin@mint-q /usr/share/xsessions $ cat /usr/bin/cinnamon-session-cinnamon2d #! /bin/sh exec cinnamon-session --session cinnamon2d "$@"

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Bug#707: BPG as bitmap compression engine in NX
by Mike Gabriel 20 Feb '16

20 Feb '16

Package: libxcomp3 Severity: wishlist Hi all, By Savko Sergey I have just been pointed to the upcoming BPG image compression library [1]. Quoting their website: """ BPG (Better Portable Graphics) is a new image format. Its purpose is to replace the JPEG image format when quality or file size is an issue. Its main advantages are: High compression ratio. Files are much smaller than JPEG for similar quality. Supported by most Web browsers with a small Javascript decoder (gzipped size: 55 KB). Based on a subset of the HEVC open video compression standard. Supports the same chroma formats as JPEG (grayscale, YCbCr 4:2:0, 4:2:2, 4:4:4) to reduce the losses during the conversion. An alpha channel is supported. The RGB, YCgCo and CMYK color spaces are also supported. Native support of 8 to 14 bits per channel for a higher dynamic range. Lossless compression is supported. Various metadata (such as EXIF, ICC profile, XMP) can be included. """ We should take a look at this new compression library and check if it is usable in NX. Mike [1] http://bellard.org/bpg/ -- DAS-NETZWERKTEAM mike gabriel, herweg 7, 24357 fleckeby fon: +49 (1520) 1976 148 GnuPG Key ID 0x25771B31 mail: mike.gabriel(a)das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.x…

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Bug#826: shadow sessions inside nxagent sessions fail
by Mike Gabriel 20 Feb '16

20 Feb '16

Package: nxagent Severity: important Version: 3.5.0.29 Control: forwarded -1 https://github.com/ArcticaProject/nx-libs/issues/6 We just tried to run cascaded sessions with one of them being a desktop sharing session: (a) from client (host-A) launch X2Go session to a remote server (server-B) (b) from X2Go session on server-B launch a remote desktop sharing session with :0 on remote host-C Result: a black nxagent window appears (inside the X2Go Session on server-B) that accepts mouse and keyboard input (which both arrive on host-C via desktop sharing). If I manage to move a window via the desktop sharing session, the black nxagent window does some screen updates, but no full view of the remotely shared desktop appears. Further discussion see: https://github.com/ArcticaProject/nx-libs/issues/6 Mike -- DAS-NETZWERKTEAM mike gabriel, herweg 7, 24357 fleckeby fon: +49 (1520) 1976 148 GnuPG Key ID 0x25771B31 mail: mike.gabriel(a)das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.x…

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Bug#769: pyhoca-gui gtk3 support
by Orion Poplawski 26 May '15

26 May '15

Package: pyhoca-gui Version: 0.5.0.3 Fedora rawhide is in the process of moving to wxPython 3.0 with gtk3 support. This appears to be breaking pyhoca-gui: /usr/lib64/python2.7/site-packages/gtk-2.0/gtk/__init__.py:40: Warning: g_boxed_type_register_static: assertion 'g_type_from_name (name) == 0' failed from gtk import _gtk /usr/lib64/python2.7/site-packages/gtk-2.0/gtk/__init__.py:40: Warning: g_type_set_qdata: assertion 'node != NULL' failed from gtk import _gtk /usr/lib64/python2.7/site-packages/gtk-2.0/gtk/__init__.py:40: Warning: cannot register existing type 'GtkWidget' from gtk import _gtk /usr/lib64/python2.7/site-packages/gtk-2.0/gtk/__init__.py:40: Warning: g_type_add_interface_static: assertion 'G_TYPE_IS_INSTANTIATABLE (instance_type)' failed from gtk import _gtk /usr/lib64/python2.7/site-packages/gtk-2.0/gtk/__init__.py:40: Warning: cannot register existing type 'GtkBuildable' from gtk import _gtk /usr/lib64/python2.7/site-packages/gtk-2.0/gtk/__init__.py:40: Warning: g_type_interface_add_prerequisite: assertion 'G_TYPE_IS_INTERFACE (interface_type)' failed from gtk import _gtk /usr/lib64/python2.7/site-packages/gtk-2.0/gtk/__init__.py:40: Warning: g_once_init_leave: assertion 'result != 0' failed from gtk import _gtk /usr/lib64/python2.7/site-packages/gtk-2.0/gtk/__init__.py:40: Warning: g_type_register_static: assertion 'parent_type > 0' failed from gtk import _gtk I believe this is because we are mixing a gtk2 based notify-python module with the gtk3 wxPython module. This seems like further impetus to move to a modern python libnotify interface, either notify2 or gobject introspection Notify. Code difference for gi appears to be: diff --git a/pyhoca/wxgui/notify.py b/pyhoca/wxgui/notify.py index bc49028..85f0d52 100644 --- a/pyhoca/wxgui/notify.py +++ b/pyhoca/wxgui/notify.py @@ -22,7 +22,7 @@ import wx from x2go import X2GOCLIENT_OS from x2go import log if X2GOCLIENT_OS in ('Linux', 'Mac'): - import pynotify + from gi.repository import Notify import exceptions import basepath @@ -52,7 +52,7 @@ class libnotify_NotifierPopup(object): self._PyHocaGUI = _PyHocaGUI self._pyhoca_logger = self._PyHocaGUI._pyhoca_logger - if not pynotify.init("PyHocaGUI"): + if not Notify.init("PyHocaGUI"): raise NotSupportedException def prepare(self, context, title=None, text=None, icon=None, timeout=None): @@ -132,8 +132,8 @@ class libnotify_NotifierPopup(object): try: if not self._PyHocaGUI.disable_notifications and title and text: - n = pynotify.Notification(title, text, icon) - n.set_urgency(pynotify.URGENCY_NORMAL) + n = Notify.Notification.new(title, text, icon) + n.set_urgency(Notify.Urgency.NORMAL) n.set_timeout(timeout) n.show() except: Although with that change, unless I comment out the set_urgency() call, I don't see the message "SSH key authentication has been successful." pop-up above the pyhoca-gui icon. But perhaps the new behavior is proper. -- Orion Poplawski Technical Manager 303-415-9701 x222 NWRA, Boulder/CoRA Office FAX: 303-415-9702 3380 Mitchell Lane orion(a)nwra.com Boulder, CO 80301 http://www.nwra.com

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Bug#641: x2goagent crash in XFreeFontPath
by Orion Poplawski 16 May '15

16 May '15

Package: nx-libs Version: 3.5.0.27 Core was generated by `/usr/lib64/nx/../x2go/bin/x2goagent -extension XFIXES -nolisten tcp -nolisten t'. Program terminated with signal SIGABRT, Aborted. #0 0x00007f1be42d9877 in raise () from /lib64/libc.so.6 Missing separate debuginfos, use: debuginfo-install glibc-2.18-16.fc20.x86_64 libX11-1.6.1-1.fc20.x86_64 libXau-1.0.8-2.fc20.x86_64 libXcursor-devel-1.1.14-2.fc20.x86_64 libXfixes-5.0.1-2.fc20.x86_64 libXrender-0.9.8-2.fc20.x86_64 libgcc-4.8.3-7.fc20.x86_64 libjpeg-turbo-1.3.1-2.fc20.x86_64 libpng-1.6.6-3.fc20.x86_64 libstdc++-4.8.3-7.fc20.x86_64 libxcb-1.9.1-3.fc20.x86_64 libxml2-2.9.1-2.fc20.x86_64 sssd-client-1.11.7-2.fc20.x86_64 xz-libs-5.1.2-12alpha.fc20.x86_64 zlib-1.2.8-3.fc20.x86_64 (gdb) bt #0 0x00007f1be42d9877 in raise () from /lib64/libc.so.6 #1 0x00007f1be42daf68 in abort () from /lib64/libc.so.6 #2 0x00007f1be4319a54 in __libc_message () from /lib64/libc.so.6 #3 0x00007f1be43203ac in malloc_consolidate () from /lib64/libc.so.6 #4 0x00007f1be4320c66 in _int_free () from /lib64/libc.so.6 #5 0x00007f1be6865d8d in XFreeFontPath (list=list@entry=0x57e3980) at GetFPath.c:92 #6 0x0000000000495789 in nxagentReconnectFailedFonts (p0=<optimized out>) at Font.c:1353 #7 0x00000000004b8670 in nxagentReconnectSession () at Reconnect.c:482 #8 0x00000000004b8a3b in nxagentHandleConnectionChanges () at Reconnect.c:827 #9 0x00000000004b8c60 in nxagentHandleConnectionStates () at Reconnect.c:218 #10 0x000000000049b905 in nxagentWakeupHandler (data=<optimized out>, count=-1, mask=0xacb760 <LastSelectMask>) at Handlers.c:589 #11 0x000000000046a33b in WakeupHandler (result=result@entry=-1, pReadmask=pReadmask@entry=0xacb760 <LastSelectMask>) at dixutils.c:472 #12 0x0000000000473ca2 in WaitForSomething (pClientsReady=pClientsReady@entry=0x7fffb3d56250) at WaitFor.c:389 #13 0x0000000000445c1a in Dispatch () at X/NXdispatch.c:619 #14 0x0000000000429455 in main (argc=15, argv=0x7fffb3d56878, envp=<optimized out>) at main.c:450 (gdb) up 5 #5 0x00007f1be6865d8d in XFreeFontPath (list=list@entry=0x57e3980) at GetFPath.c:92 92 Xfree ((char *)list); (gdb) print list $1 = (char **) 0x57e3980 (gdb) print (char *)list $2 = 0x57e3980 "\020\263\201\006" (gdb) up #6 0x0000000000495789 in nxagentReconnectFailedFonts (p0=<optimized out>) at Font.c:1353 1353 XFreeFontPath(fontPaths); (gdb) print fontPaths $3 = (char **) 0x57e3980 Oct 11 11:59:33 kolea systemd: Started Session 1613 of user leka. Oct 11 11:59:35 kolea /usr/bin/x2goresume-session: x2goresume-session called with options: leka-50-1412986821_stDKDE_dp24 800x600 adsl 16m-jpeg-9 us pc105/us 1 Oct 11 11:59:35 kolea /usr/bin/x2gofeature: x2gofeature called with options: X2GO_RUN_EXTENSIONS Oct 11 11:59:36 kolea /usr/share/x2go/x2gofeature.d/x2goserver-extensions.features: x2goserver-extensions.features called with options: X2GO_RUN_EXTENSIONS Oct 11 11:59:36 kolea /usr/bin/x2goserver-run-extensions: x2goserver-run-extensions called with options: leka-50-1412986821_stDKDE_dp24 pre-resume Oct 11 11:59:36 kolea su: (to leka) root on none Oct 11 11:59:36 kolea systemd: Starting Session c67 of user leka. Oct 11 11:59:36 kolea systemd: Started Session c67 of user leka. Oct 11 11:59:37 kolea su: (to leka) root on none Oct 11 11:59:37 kolea systemd: Starting Session c68 of user leka. Oct 11 11:59:37 kolea systemd: Started Session c68 of user leka. Oct 11 11:59:37 kolea /usr/bin/x2goresume-session: client 10.10.10.1 has successfully resumed session with ID leka-50-1412986821_stDKDE_dp24 Oct 11 11:59:37 kolea /usr/bin/x2gofeature: x2gofeature called with options: X2GO_DESKTOPSHARING Oct 11 11:59:37 kolea /usr/bin/x2gosuspend-session: x2gosuspend-session called with options: leka-50-1412986821_stDKDE_dp24 Oct 11 11:59:37 kolea /usr/share/x2go/x2gofeature.d/x2goserver-extensions.features: x2goserver-extensions.features called with options: X2GO_DESKTOPSHARING Oct 11 11:59:37 kolea /usr/share/x2go/x2gofeature.d/x2goserver.features: x2goserver.features called with options: X2GO_DESKTOPSHARING Oct 11 11:59:37 kolea /usr/share/x2go/x2gofeature.d/x2goserver-fmbindings.features: x2goserver-fmbindings.features called with options: X2GO_DESKTOPSHARING Oct 11 11:59:38 kolea /usr/share/x2go/x2gofeature.d/x2goserver-xsession.features: x2goserver-xsession.features called with options: X2GO_DESKTOPSHARING Oct 11 11:59:38 kolea /usr/bin/x2gofeature: x2gofeature called with options: X2GO_RUN_EXTENSIONS Oct 11 11:59:38 kolea /usr/bin/x2gofeature: x2gofeature called with options: X2GO_DESKTOPSHARING Oct 11 11:59:38 kolea /usr/share/x2go/x2gofeature.d/x2goserver-extensions.features: x2goserver-extensions.features called with options: X2GO_RUN_EXTENSIONS Oct 11 11:59:38 kolea /usr/share/x2go/x2gofeature.d/x2goserver-extensions.features: x2goserver-extensions.features called with options: X2GO_DESKTOPSHARING Oct 11 11:59:38 kolea /usr/bin/x2goserver-run-extensions: x2goserver-run-extensions called with options: leka-50-1412986821_stDKDE_dp24 post-resume Oct 11 11:59:38 kolea /usr/share/x2go/x2gofeature.d/x2goserver.features: x2goserver.features called with options: X2GO_DESKTOPSHARING Oct 11 11:59:38 kolea /usr/share/x2go/x2gofeature.d/x2goserver-fmbindings.features: x2goserver-fmbindings.features called with options: X2GO_DESKTOPSHARING Oct 11 11:59:38 kolea /usr/share/x2go/x2gofeature.d/x2goserver-xsession.features: x2goserver-xsession.features called with options: X2GO_DESKTOPSHARING Oct 11 11:59:38 kolea /usr/bin/x2gofeature: x2gofeature called with options: X2GO_RUN_EXTENSIONS Oct 11 11:59:39 kolea /usr/share/x2go/x2gofeature.d/x2goserver-extensions.features: x2goserver-extensions.features called with options: X2GO_RUN_EXTENSIONS Oct 11 11:59:39 kolea /usr/bin/x2goserver-run-extensions: x2goserver-run-extensions called with options: leka-50-1412986821_stDKDE_dp24 pre-suspend Oct 11 11:59:39 kolea /usr/bin/x2goumount-session[20559]: x2goumount-session has been called with options: leka-50-1412986821_stDKDE_dp24 Oct 11 11:59:39 kolea /usr/bin/x2goumount-session[20559]: SSHFS share already unmounted, taking care of further clean-up (C-leka-50-1412986821_stDKDE_dp24) Oct 11 11:59:39 kolea /usr/bin/x2gofeature: x2gofeature called with options: X2GO_FMBINDINGS Oct 11 11:59:39 kolea /usr/share/x2go/x2gofeature.d/x2goserver-extensions.features: x2goserver-extensions.features called with options: X2GO_FMBINDINGS Oct 11 11:59:39 kolea /usr/share/x2go/x2gofeature.d/x2goserver.features: x2goserver.features called with options: X2GO_FMBINDINGS Oct 11 11:59:39 kolea /usr/share/x2go/x2gofeature.d/x2goserver-fmbindings.features: x2goserver-fmbindings.features called with options: X2GO_FMBINDINGS Oct 11 11:59:40 kolea /usr/bin/x2gosuspend-session: session with ID leka-50-1412986821_stDKDE_dp24 has been suspended successfully Oct 11 11:59:40 kolea /usr/bin/x2gomountdirs[20632]: x2gomountdirs has been called with options: dir leka-50-1412986821_stDKDE_dp24 leka /home/leka/.x2go/ssh/key.nt1127 /export/home/leka/.x2go/S-leka-50-1412986821_stDKDE_dp24/spool__PRINT_SPOOL___REVERSESSH_PORT__30008 Oct 11 11:59:40 kolea /usr/bin/x2gofeature: x2gofeature called with options: X2GO_RUN_EXTENSIONS Oct 11 11:59:40 kolea /usr/share/x2go/x2gofeature.d/x2goserver-extensions.features: x2goserver-extensions.features called with options: X2GO_RUN_EXTENSIONS Oct 11 11:59:41 kolea /usr/bin/x2goserver-run-extensions: x2goserver-run-extensions called with options: leka-50-1412986821_stDKDE_dp24 post-suspend Oct 11 11:59:43 kolea su: (to leka) root on none Oct 11 11:59:43 kolea systemd: Starting Session c69 of user leka. Oct 11 11:59:43 kolea systemd: Started Session c69 of user leka. Oct 11 11:59:44 kolea su: (to leka) root on none Oct 11 11:59:44 kolea systemd: Starting Session c70 of user leka. Oct 11 11:59:44 kolea systemd: Started Session c70 of user leka. Oct 11 11:59:44 kolea /usr/bin/x2gosuspend-session: x2gosuspend-session called with options: leka-50-1412986821_stDKDE_dp24 Oct 11 11:59:44 kolea /usr/bin/x2gofeature: x2gofeature called with options: X2GO_DESKTOPSHARING Oct 11 11:59:44 kolea /usr/share/x2go/x2gofeature.d/x2goserver-extensions.features: x2goserver-extensions.features called with options: X2GO_DESKTOPSHARING Oct 11 11:59:45 kolea /usr/share/x2go/x2gofeature.d/x2goserver.features: x2goserver.features called with options: X2GO_DESKTOPSHARING Oct 11 11:59:45 kolea /usr/share/x2go/x2gofeature.d/x2goserver-fmbindings.features: x2goserver-fmbindings.features called with options: X2GO_DESKTOPSHARING Oct 11 11:59:45 kolea /usr/share/x2go/x2gofeature.d/x2goserver-xsession.features: x2goserver-xsession.features called with options: X2GO_DESKTOPSHARING Oct 11 11:59:45 kolea /usr/bin/x2gofeature: x2gofeature called with options: X2GO_RUN_EXTENSIONS Oct 11 11:59:45 kolea /usr/share/x2go/x2gofeature.d/x2goserver-extensions.features: x2goserver-extensions.features called with options: X2GO_RUN_EXTENSIONS Oct 11 11:59:45 kolea /usr/bin/x2goserver-run-extensions: x2goserver-run-extensions called with options: leka-50-1412986821_stDKDE_dp24 pre-suspend Oct 11 11:59:45 kolea /usr/bin/x2goumount-session[20856]: x2goumount-session has been called with options: leka-50-1412986821_stDKDE_dp24 Oct 11 11:59:45 kolea /usr/bin/x2goumount-session[20856]: successfully unmounted "/tmp/.x2go-leka/spool/C-leka-50-1412986821_stDKDE_dp24" Oct 11 11:59:45 kolea /usr/bin/x2gofeature: x2gofeature called with options: X2GO_FMBINDINGS Oct 11 11:59:46 kolea /usr/share/x2go/x2gofeature.d/x2goserver-extensions.features: x2goserver-extensions.features called with options: X2GO_FMBINDINGS Oct 11 11:59:46 kolea /usr/share/x2go/x2gofeature.d/x2goserver.features: x2goserver.features called with options: X2GO_FMBINDINGS Oct 11 11:59:46 kolea /usr/share/x2go/x2gofeature.d/x2goserver-fmbindings.features: x2goserver-fmbindings.features called with options: X2GO_FMBINDINGS Oct 11 11:59:46 kolea /usr/bin/x2gosuspend-session: session with ID leka-50-1412986821_stDKDE_dp24 has been suspended successfully Oct 11 11:59:46 kolea /usr/bin/x2gofeature: x2gofeature called with options: X2GO_RUN_EXTENSIONS Oct 11 11:59:47 kolea /usr/share/x2go/x2gofeature.d/x2goserver-extensions.features: x2goserver-extensions.features called with options: X2GO_RUN_EXTENSIONS Oct 11 11:59:47 kolea /usr/bin/x2goserver-run-extensions: x2goserver-run-extensions called with options: leka-50-1412986821_stDKDE_dp24 post-suspend Oct 11 11:59:52 kolea abrt-hook-ccpp: Saved core dump of pid 21706 (/usr/lib64/nx/bin/nxagent) to /var/tmp/abrt/ccpp-2014-10-11-11:59:46-21706 (103579648 bytes) -- Orion Poplawski Technical Manager 303-415-9701 x222 NWRA/CoRA Division FAX: 303-415-9702 3380 Mitchell Lane orion(a)cora.nwra.com Boulder, CO 80301 http://www.cora.nwra.com

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Bug#673: GUI-based Applications stall when x2go session is suspended
by Jerry Rabe 15 May '15

15 May '15

Package: x2goserver Version: 4.0.1.15-2.el7 x86_64 When an x2go session is suspended, any running GUI-based application will stall as soon as it tries to update graphical information in the GUI. This was not the case with the old freenx server, and it is a problem for large jobs that take a long time to run. Not sure if this is just a configuration/install problem. What does NOT stall: - Text-based output from command line-based shell scripts. - GUI-based applications running in suspended x2go sessions as Published Applications. What DOES Stall: - GUI-based applications running in suspended x2go sessions (accessed by X2GoClient) on a Linux Desktop (i,.e. MATE, XFCE) - GUI-based applications running in suspended NX sessions (accessed by an NX3 client) on a Linux Desktop (i,.e. MATE, XFCE) The steps taken to produce the bug: - Start a GUI-based Application (for testing, use the Linux System Monitor, open the "Resources" tab) - Suspend the x2go session. - Some time later, resume the session. The GUI now continues running, but it had stalled while the session was suspended. The client machine's OS: Windows 7 SP1 The client machine's version of X2GoClient: 4.0.3.0 The server's OS: Centos 7 The server's version of the x2goserver package: 4.0.1.18-1.el7 x86_64 The server's version of the x2goserver-xsession package: 4.0.1.18-1.el7 x86_64 The server's version of the nxagent package:3.5.0.27-1.el7 x86_64

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Bug#637: Qt5 apps crash at startup on Linux host
by André Wöbbeking 15 May '15

15 May '15

Package: x2goserver Version: 4.0.1.18 Hi, Any Qt 5.3 app starting on a Linux host crashes with this backtrace: __lll_unlock_elision elision-unlock.c:29 XIQueryVersion XIQueryVersion.c:47 QXcbConnection::initializeXInput2 qxcbconnection_xi2.cpp:84 QXcbConnection::QXcbConnection qxcbconnection.cpp:336 QXcbIntegration::QXcbIntegration qxcbintegration.cpp:161 QXcbIntegrationPlugin::create qxcbmain.cpp:58 These apps run fine locally. I also get this warning before the apps crash: xcb_randr_get_output_primary_reply_t *primary = xcb_randr_get_output_primary_reply(xcb_connection(), primaryCookie, &error); if (!primary || error) { qWarning("QXcbConnection: Failed to get the primary output of the screen"); free(error); } And xrandr prints: "xrandr: Failed to get size of gamma for output default" I'm using current Debian testing. Cheers, André

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Bug#757: Segfault of QDialog in a PyQt application
by PAILLAT Olivier SOPRA GROUP 15 May '15

15 May '15

Package: client Version: 4.0.3.0 Qt 4.8.6 When we run our PyQt application on our Debian Wheezy computer with an ssh -X connection it work fine But when we use X2Go to access the computer and we run our application we've got a segmentation fault at the first QDialog opening. (when we run QDialog.exec_). We recently update the X2Go version and before that update it was working fine. We found at least one post that describe the same problem in January 2014 on your bug report site : X2Go Bug report logs - #410 Segfault of _X11TransWritev in libNX_X11.so.6 with libQtGui Like suggested in this report if we run a simple application to test an opening of a dialog box it work fine with X2Go >From your experience of this bugs is there any way to solve this problem ? Sincerely, Olivier PAILLAT Agence STIE Sud-Est [Sopra Steria] Sopra Steria 780 rue Guillibert de la Lauzière Pichaury 2 - CS 40496 13593 Aix-en-Provence Cedex 3 - France Phone: +33 (0)4 42 25 71 46 olivier.paillat(a)cea.fr<mailto:olivier.paillat@cea.fr> - www.soprasteria.com<http://www.soprasteria.com> Le contenu de cet e-mail est susceptible d'être confidentiel, soumis au secret professionnel ou protégé par la loi. L'utilisation, la copie et la divulgation non autorisées d'une partie ou de l'intégralité de ce message sont susceptibles d'être illégales. Si vous avez reçu ce message par erreur, supprimez-le après avoir averti l'expéditeur. Les pièces jointes du présent e-mail ont fait l'objet d'un contrôle antivirus. Néanmoins, nous déclinons toute responsabilité concernant les dommages causés par d'éventuels virus. Pensez à l'environnement avant d'imprimer.

3 9

Bug#205: Some comments on this
by Ulrich Sibiller 15 May '15

15 May '15

In nxagent-3.5.0-8 NoMachine has tweaked the version number of nxagent to work better with cairo. So doing this is not completely unusual for NX... In nx-X11/programs/Xserver/hw/ nxagent/Init.c you can find these lines: ----------------------------------------------------------- /* * Avoid slowness due to buggy_repeat workaround * in libcairo versions >= 1.10. */ SetVendorRelease(70000000); ----------------------------------------------------------- And in the CHANGELOG: ----------------------------------------------------------- nxagent-3.5.0-8 - Fixed TR01J02646. Performance issues with cairo version 1.12. ----------------------------------------------------------- However, the current cairo code contains this (http://cgit.freedesktop.org/cairo/tree/src/cairo-xlib-display.c around line 300): ----------------------------------------------------------- if (VendorRelease (dpy) >= 60700000) { if (VendorRelease (dpy) < 70000000) display->buggy_repeat = TRUE; } ----------------------------------------------------------- As NX is presenting itself as 70000000 the condition is false already and changing the version to 70100000 would not change the cairo behaviour here. BTW: Xorg 6.9 and 7.0 are the same code. 7.0 has just been restructured completely and adapted to automake. Uli

2 1

Bug#777: nx-libs: incorrect usage of scanf
by Heinrich Schuchardt 15 May '15

15 May '15

package: nx-libs version: head In different parts of the nx-libs library you can find usages of scanf like /* check for MESA_GAMMA environment variable */ gamma = _mesa_getenv("MESA_GAMMA"); if (gamma) { v->RedGamma = v->GreenGamma = v->BlueGamma = 0.0; sscanf( gamma, "%f %f %f", &v->RedGamma, &v->GreenGamma, &v->BlueGamma ); According to cppcheck: scanf without field width limits can crash with huge input data on libc versions older than 2.13-25. Add a field width specifier to fix this problem: %i => %3i Best regards Heinrich Schuchardt

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x2go-dev March 2015