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2315 discussions

Re: [X2Go-User] Incomplete redrawing,of screen
by K. Reinhold Trier 03 Oct '17

03 Oct '17

It's not a problem of the of the Xserver. A (software) screenshot shows a correct screen, this is what the Xserver "thinks" he would display whereas the real screen is scrambled. But only in the case of a x2go-connection, not in local operations. And - as described before - only when using hardware of somehow low performance together with HDMI connection. I found a posting describing a similar problem: http://lists.x2go.org/pipermail/x2go-user/2016-February/003717.html Reinhold Am 02.10.2017 um 17:29 schrieb Ulrich Sibiller: > On Mon, Oct 2, 2017 at 4:49 PM, K. Reinhold Trier > <R.Trier(a)it-jobst.de> wrote: >> Hello, >> >> we are using x2go server and clients both on Ubuntu 16.04. After >> configuring new clients on small single board boxes like a ZODAC >> Zbox or a Raspberry Pi 3 we observe severe screen redrawing >> problems an a very poor performance in video transfer. E.G. >> shifting a Thunderbird-window over a Firefox-window the latter >> remains scrambled with rests of Thunderbird. We didn't run into >> that problem in our former installation based on Ubuntu 12.04. >> After searching for solutions in the compression method and the >> CPU-performance of the clients I occasionally found out that the >> problem disappears after connecting the client's monitor via VGA >> instead of a HDMI connection. The problem even disappears when a >> HDI/VGA-Adapter is used and the signal is fed to the monitor via an >> VGA-input. This was tested with different monitors. In our former >> clients we only used VGA connected monitors and so we could not see >> the problems. The optical quality of a HDMI connected Monitor is >> notably better than that of VGA connected one, furthermore the VGA >> connection seems to become obsolete, so we would like to stay with >> HDMI. What can be the reason and is there a way change the >> HDMI-output in to a suitable configuration? > > To me this sounds like a buggy Xserver on the client. There's really > nothing in X2go (or better: in NX) that cares about the type of > connection. > > Uli

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Incomplete redrawing,of screen
by K. Reinhold Trier 02 Oct '17

02 Oct '17

Hello, we are using x2go server and clients both on Ubuntu 16.04. After configuring new clients on small single board boxes like a ZODAC Zbox or a Raspberry Pi 3 we observe severe screen redrawing problems an a very poor performance in video transfer. E.G. shifting a Thunderbird-window over a Firefox-window the latter remains scrambled with rests of Thunderbird. We didn't run into that problem in our former installation based on Ubuntu 12.04. After searching for solutions in the compression method and the CPU-performance of the clients I occasionally found out that the problem disappears after connecting the client's monitor via VGA instead of a HDMI connection. The problem even disappears when a HDI/VGA-Adapter is used and the signal is fed to the monitor via an VGA-input. This was tested with different monitors. In our former clients we only used VGA connected monitors and so we could not see the problems. The optical quality of a HDMI connected Monitor is notably better than that of VGA connected one, furthermore the VGA connection seems to become obsolete, so we would like to stay with HDMI. What can be the reason and is there a way change the HDMI-output in to a suitable configuration? Best regards Reinhold

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X2godesktopsharing
by "BOTZ Franck (Administrateur Systèmes et Résea ux) - DDT 67/SIDSIC/Pôle Infra" 30 Sep '17

30 Sep '17

Hi ! My server run xubuntu 16.04. users can open session and work with applications. When they activate the x2godesktopsharing program, they see the icon on the systray and can activate the desktop sharing. So, then i launch the x2goclient with local desktop as profil. The session openned and i can see all x2godesktopsharing that run on the server. I select a session, ans try ton connecter with all rights. The user as a windoWs wich ask him to accept the connexion. After that, à second Windows come and want tout authentify as the admin user tout allow running applications as a different user. In auth.log, i see something like polkitd .... Any ideas ? Regards. Franck Franck Botz

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Re: [X2Go-User] X2Go trouble on Ubuntu (fwd)
by Robert Dinse 27 Sep '17

27 Sep '17

This customer with MacOS 10.x and 4.1.1.0 of Ubuntu gets this error, he also gets it with previous versions. I have an older Mac Pro 1,1 running Mac OS 10.7.5 and I also get this error if I try to login to a ubuntu server with a normal username but if I login as root it works fine. I tried moving /etc/profile out of the way just to eliminate the bashism's issue, made no difference. Client version 4.1.1.0 and 4.1.0.0 both core dump on my machine with a invalid kernel address error. 4.0.0.1 does not but still gets this same error. I can login to the same Ubuntu server with regular user ID's using 4.1.1.0 under Linux just fine. The customer can login to CentOS machines with this client and same user ID. -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_- Eskimo North Linux Friendly Internet Access, Shell Accounts, and Hosting. Knowledgeable human assistance, not telephone trees or script readers. See our web site: http://www.eskimo.com/ (206) 812-0051 or (800) 246-6874. ---------- Forwarded message ---------- Date: Sun, 24 Sep 2017 15:18:22 -0700 From: Dan Church <churchd(a)eskimo.com> To: Robert Dinse <nanook(a)eskimo.com> Subject: Re: X2Go trouble on Ubuntu I downloaded X2Go v. 4.1.1.0 (Qt - 4.8.7) No go. Same error. /home/churchd/.bash_profile: Operation not permitted. - Dan

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QuestaSim major issue
by carl langlois 23 Sep '17

23 Sep '17

Hi , I know that it as been discuss at one point in the forum but the thread ended. We are using a tool call Qestasim from mentor graphc. It use TK a GUI widget. The probleme is when using this tool in publish application all the others application seem to freeze and x2go is unusable. This seem to related to NX in some way becasue i have the same issue with openx. Also when using in desktop mode it is all fine.. We have a couple of application with lightweith application written in TK also and it seem a bit slower with those app. Any hint would be appreciate on how to debug this.. Thanks for your help. Carl

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Re: [X2Go-User] Keyboard problem with special characters #@
by Ruben Di Battista 18 Sep '17

18 Sep '17

I always had problems with OSX and x2go. In my case it was on a fedora Fc20. I solved setting up English on the target machine and then providing a xmodmap keymapping. Did you try something like this? https://stackoverflow.com/a/42094562/1334711 Sent from mobile. I'm sorry for any possible unwanted typo. Il 16 set 2017 12:00 PM, <x2go-user-request(a)lists.x2go.org> ha scritto: Send x2go-user mailing list submissions to x2go-user(a)lists.x2go.org To subscribe or unsubscribe via the World Wide Web, visit https://lists.x2go.org/listinfo/x2go-user or, via email, send a message with subject or body 'help' to x2go-user-request(a)lists.x2go.org You can reach the person managing the list at x2go-user-owner(a)lists.x2go.org When replying, please edit your Subject line so it is more specific than "Re: Contents of x2go-user digest..." Today's Topics: 1. Keyboard problem with special characters #@ (Markus Gschwind) ---------------------------------------------------------------------- Message: 1 Date: Fri, 15 Sep 2017 16:43:23 +0200 From: Markus Gschwind <markus.gschwind(a)gmail.com> To: x2go-user(a)lists.x2go.org Subject: [X2Go-User] Keyboard problem with special characters #@ Message-ID: <CABaUQnxZ=wiWqPxouKYVAX6YuUCDuEgJVR4ejf+pqnibYNjkGg(a)mail.gmail.com> Content-Type: text/plain; charset="utf-8" Dear all, I am getting myself comfortable with X2goclient. However, I cannot get the special characters in the remote environement (# @ etc., principally the AltGr functions). I use the version X2Go Client v. 4.1.0.0 (Qt - 4.8.7) on a MacBook Pro mid 2012 running OSX ElCaptain 10.11.6 (15G1611) with a standard american keyboard which I have mapped CH_FR. On the linux Side it is Centos6, where I have selected System => Keyboard => Layouts : Keyboard model: MBP intel Mapping CH_FR Macintosh How can I get that keyboard problem fixed? Thank you very much! Best, Markus

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Emacs crashes on start
by Roderick Johnstone 18 Sep '17

18 Sep '17

Hi I'm connecting from a Mac (X2Go Client v. 4.0.5.1 (Qt - 4.8.7)) to Fedora 24 with a xfce session using the x2goserver-4.0.1.19-11.fc24.x86_64 packages from the fedora repos. On starting emacs, I get the error below. This issue seems to have been around for a while in similar forms, but didn't affect me under Fedora 22. Is anyone in a position to confirm this issue on Fedora 24 and suggest a work around? I tried setting various environment variables suggested on various web pages for similar issues and in the bug report noted in the error message (and checked /etc/PROBLEMS), but nothing was effective. emacs starts fine in an xfce session at the console. Thanks Roderick Johnstone X protocol error: BadRequest (invalid request code or no such operation) on protocol request 131 When compiled with GTK, Emacs cannot recover from X disconnects. This is a GTK bug: https://bugzilla.gnome.org/show_bug.cgi?id=85715 For details, see etc/PROBLEMS. Fatal error 6: Aborted Backtrace: emacs[0x50ad3c] emacs[0x4f11ec] emacs[0x50ade3] emacs[0x4c0f60] emacs[0x4c58b6] emacs[0x4c593b] /lib64/libX11.so.6(_XError+0x12d)[0x2b5baa0ff57d] /lib64/libX11.so.6(+0x413e7)[0x2b5baa0fc3e7] /lib64/libX11.so.6(+0x414ad)[0x2b5baa0fc4ad] /lib64/libX11.so.6(_XReply+0x238)[0x2b5baa0fd478] /lib64/libX11.so.6(XQueryPointer+0x91)[0x2b5baa0f3351] /lib64/libgdk-3.so.0(+0x4da2a)[0x2b5ba8150a2a] /lib64/libgdk-3.so.0(+0x6a605)[0x2b5ba816d605] /lib64/libgdk-3.so.0(gdk_window_get_device_position_double+0x10b)[0x2b5ba8143d1b] /lib64/libgdk-3.so.0(gdk_window_get_device_position+0x2d)[0x2b5ba8143e1d] /lib64/libgtk-3.so.0(+0x321199)[0x2b5ba7b48199] /lib64/libgtk-3.so.0(+0x3216f4)[0x2b5ba7b486f4] /lib64/libgdk-3.so.0(+0x253d8)[0x2b5ba81283d8] /lib64/libglib-2.0.so.0(+0x4a173)[0x2b5ba97d0173] /lib64/libglib-2.0.so.0(g_main_context_dispatch+0x163)[0x2b5ba97cf703] emacs[0x5e0b78] emacs[0x5a6025] emacs[0x4fc1bc] emacs[0x4fdfdd] emacs[0x4ffc24] emacs[0x564642] emacs[0x4f16b4] emacs[0x5645e3] emacs[0x4f1670] emacs[0x4f5e6b] emacs[0x4f61c8] emacs[0x419b52] /lib64/libc.so.6(__libc_start_main+0xf1)[0x2b5bb17db731] emacs[0x41a639] Aborted (core dumped)

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Keyboard problem with special characters #@
by Markus Gschwind 15 Sep '17

15 Sep '17

Dear all, I am getting myself comfortable with X2goclient. However, I cannot get the special characters in the remote environement (# @ etc., principally the AltGr functions). I use the version X2Go Client v. 4.1.0.0 (Qt - 4.8.7) on a MacBook Pro mid 2012 running OSX ElCaptain 10.11.6 (15G1611) with a standard american keyboard which I have mapped CH_FR. On the linux Side it is Centos6, where I have selected System => Keyboard => Layouts : Keyboard model: MBP intel Mapping CH_FR Macintosh How can I get that keyboard problem fixed? Thank you very much! Best, Markus

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Local install of x2goclient, Auth ok but no X Server Windows
by Ruben Di Battista 13 Sep '17

13 Sep '17

Hello everyone, I'm on a work machine where I do not have root access. So I'm installing all the software I need in $HOME/.local. I successfully compiled x2goclient (after compiling a personal version of libssh, but still using nx-libs present in the system), I get the GUI. I can successfully authenticate on the remote server, but nothing shows up. My first guess is the nx-libs too old, or not compatible with the version I compiled. OS: CentOS Linux release 7.3.1611 (Core) x2go: 4.1.0 Attached you find ldd output and debug output of x2goclient -- _ -. .´ |∞∞∞∞ ', ; |∞∞∞∞∞∞ ˜˜ |∞∞∞∞∞∞∞∞∞ RdB ,., |∞∞∞∞∞∞ .' '. |∞∞∞∞ -' `' http://rdb.is

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Fwd: changing keyboard settings from a Mac to 4.0.1.20 & MATE Error activating XKB configuration
by Robert Kudyba 12 Sep '17

12 Sep '17

Package: x2goserver-4.0.1.20-2.fc26.src.rpm Name : x2goserver Version : 4.0.1.20 Release : 2.fc26 Arch : x86_64 Size : 309 k Source : x2goserver-4.0.1.20-2.fc26.src.rpm Repo : @System >From repo : @commandline Summary : X2Go Server URL : http://www.x2go.org License : GPLv2+ When trying to connect with a Mac and changing the default keyboard layout, you can't login and the attached screen shot shows the error: Error activating XKB configuration xprop -root|grep XKB _XKB_RULES_NAMES_BACKUP(STRING) = "xorg", "null", "null", "", "" _XKB_RULES_NAMES(STRING) = "xorg", "null", "null", "", "" server:~/$ gsettings list-keys org.mate.peripherals-keyboard-xkb.kbd layouts model options Some logs from /var/log/messages: Sep 8 16:32:19 server at-spi-bus-launcher[6025]: XIO: fatal IO error 11 (Resource temporarily unavailable) on X server ":142" Sep 8 16:32:19 server at-spi-bus-launcher[6025]: after 46 requests (46 known processed) with 0 events remaining. Sep 8 16:32:19 server journal[6129]: mate-notification-daemon: Fatal IO error 11 (Resource temporarily unavailable) on X server :142. Sep 8 16:35:06 server /usr/bin/x2gostartagent[9938]: successfully started X2Go agent session with ID user-139-1504902903_stDMATE_dp32 Sep 8 16:35:08 server /usr/bin/x2goruncommand[10328]: launching session with Xsession-x2go mechanism, using STARTUP="mate-session" Sep 8 16:35:08 server /usr/bin/x2gomountdirs[10220]: successfully mounted user@127.0.0.1:42455/Users/.x2go/S-user-139-1504902903_stDMATE_dp32/spo ol to /tmp/.x2go-user/spool/C--139-1504902903_stDMATE_dp32 Sep 8 16:35:11 server at-spi-bus-launcher[8124]: dbus-daemon[8143]: Activating service name='org.a11y.atspi.Registry' requested by ':1.20' (uid=1200 pid=103 29 comm="mate-session ") Sep 8 16:35:11 server journal[10563]: Could not open X display logs from .xsession-x2go-erdos.dsm.fordham.edu-errors XSession-x2go: X session started for user at Fri Sep 8 16:40:28 EDT 2017 mate-session[18483]: WARNING: keycode1 not existent mate-session[18483]: WARNING: keycode2 not existent mate-session[18483]: WARNING: GSIdleMonitor: IDLETIME counter not found mate-session[18483]: GLib-GObject-CRITICAL: object GSIdleMonitor 0x7f1794003f00 finalized while still in-construction mate-session[18483]: GLib-GObject-CRITICAL: Custom constructor for class GSIdleMonitor returned NULL (which is invalid). Please use GInitable instead. mate-session[18483]: WARNING: Could not parse desktop file /u/pascal/user/.config/autostart/beagle-search-autostart.desktop: Key file does not have key “Type” in group “Desktop Entry” mate-session[18483]: GLib-GObject-CRITICAL: object GsmAutostartApp 0x556745454b80 finalized while still in-construction mate-session[18483]: GLib-GObject-CRITICAL: Custom constructor for class GsmAutostartApp returned NULL (which is invalid). Please use GInitable instead. mate-session[18483]: WARNING: could not read /u/pascal/user/.config/autosta rt/beagle-search-autostart.desktop mate-session[18483]: WARNING: Could not parse desktop file /u/pascal/user/.config/autostart/beagled-autostart.desktop: Key file does not have key “Type” in group “Desktop Entry” mate-session[18483]: GLib-GObject-CRITICAL: object GsmAutostartApp 0x556745454d20 finalized while still in-construction mate-session[18483]: GLib-GObject-CRITICAL: Custom constructor for class GsmAutostartApp returned NULL (which is invalid). Please use GInitable instead. mate-session[18483]: WARNING: could not read /u/pascal/user/.config/autosta rt/beagled-autostart.desktop mate-session[18483]: EggSMClient-WARNING: Desktop file '/u/pascal/user/.config/autostart/sealertauto.desktop' has malformed Icon key 'setroubleshoot_icon.png'(should not include extension) ** (mate-settings-daemon:18975): WARNING **: Unable to start xrandr manager: RANDR extension is too old (must be at least 1.3) Window manager warning: Log level 16: g_object_set_valist: object class 'MetaFrames' has no property named 'type' Window manager warning: Missing composite extension required for compositingError: No Symbols named "mac" in the include file "macintosh_vndr/us" Exiting Abandoning symbols file "(null)" ** (mate-settings-daemon:18975): WARNING **: Could not activate the XKB configuration Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged. Unable to open desktop file /usr/share/applications/virtualbox.desktop for panel launcher mate-session[18483]: WARNING: Could not launch application 'gnubiff.desktop': Unable to start application: Failed to execute child process “gnubiff” (No such file or directory) vmware-user: could not open /proc/fs/vmblock/dev SSH_AUTH_SOCK=/run/user/1200/keyring/ssh mate-session[18483]: WARNING: Could not launch application 'devilspie.desktop': Unable to start application: Failed to execute child process “devilspie” (No such file or directory) Unable to open desktop file firefox-esr.desktop for panel launcher SSH_AUTH_SOCK=/run/user/1200/keyring/ssh SSH_AUTH_SOCK=/run/user/1200/keyring/ssh Unable to open desktop file emacs-gtk2.desktop for panel launcher ** (zeitgeist-datahub:19435): WARNING **: zeitgeist-datahub.vala:224: Unable to get name "org.gnome.zeitgeist.datahub" on the bus! Initializing caja-open-terminal extension Initializing caja-image-converter extension Failure: Module initialization failed Can't open RFKILL control device: No such file or directory *** ERROR *** TI:16:40:34 TH:0x557668107e40 FI:gpm-manager.c FN:gpm_manager_systemd_inhibit,1784 - Error in dbus - GDBus.Error:org.freedesktop.DBus.Error.AccessDenied: Permission denied Traceback: mate-power-manager(+0x18f3f) [0x557666547f3f] mate-power-manager(+0x11ba9) [0x557666540ba9] /lib64/libgobject-2.0.so.0(g_type_create_instance+0x1ed) [0x7f480846c3cd] /lib64/libgobject-2.0.so.0(+0x144b8) [0x7f480844d4b8] /lib64/libgobject-2.0.so.0(g_object_newv+0x275) [0x7f480844eee5] /lib64/libgobject-2.0.so.0(g_object_new+0x104) [0x7f480844f6a4] mate-power-manager(+0x11fc2) [0x557666540fc2] mate-power-manager(+0x7b62) [0x557666536b62] /lib64/libc.so.6(__libc_start_main+0xea) [0x7f480784050a] mate-power-manager(+0x7eda) [0x557666536eda] (mate-panel:19137): Gtk-WARNING **: Allocating size to PanelToplevel 0x55baaa58b4e0 without calling gtk_widget_get_preferred_width/height(). How does the code know the size to allocate? blueman-applet version 2.1.alpha1 starting Traceback (most recent call last): File "/usr/bin/blueman-applet", line 27, in <module> BluemanApplet() File "/usr/lib/python3.6/site-packages/blueman/main/Applet.py", line 33, in __init__ self.Manager = Bluez.Manager() File "/usr/lib/python3.6/site-packages/blueman/bluez/Manager.py", line 30, in __new__ cls._instance._init(*args, **kwargs) File "/usr/lib/python3.6/site-packages/blueman/bluez/Manager.py", line 40, in _init self.__bus_name, '/', None, None, None) GLib.Error: g-dbus-error-quark: Error calling StartServiceByName for org.bluez: GDBus.Error:org.freedesktop.DBus.Error.TimedOut: Failed to activate service 'org.bluez': timed out (service_start_timeout=25000ms) (20) Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged. mate-session[18483]: WARNING: Unable to load desktop file '/usr/bin/firewall-applet.desktop': No such file or directory Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged. (mate-session:18483): Gtk-WARNING **: gtk_window_set_titlebar() called on a realized window Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged. [1504903231,000,xklavier.c:xkl_engine_start_listen/] The backend does not require manual layout management - but it is provided by the application [1504903231,000,xklavier_config_xkb.c:xkl_config_get_keyboard/] Could not load /usr/bin/xkbcomp output as XKM file, got 127 (asked 127) Gdk-Message: mate-volume-control-applet: Fatal IO error 11 (Resource temporarily unavailable) on X server :141. Gdk-Message: dnfdragora-updater: Fatal IO error 11 (Resource temporarily unavailable) on X server :141. Gdk-Message: nm-applet: Fatal IO error 11 (Resource temporarily unavailable) on X server :141. Gdk-Message: evolution-alarm-notify: Fatal IO error 11 (Resource temporarily unavailable) on X server :141. Gdk-Message: abrt: Fatal IO error 11 (Resource temporarily unavailable) on X server :141. Gdk-Message: blueberry-obex-agent.py: Fatal IO error 11 (Resource temporarily unavailable) on X server :141.

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