x2go-user June 2015

x2go-user@lists.x2go.org

22 participants
29 discussions

debian testing repo throws error
by Sebastian Urchs 25 Jun '15

25 Jun '15

Hi, I just tried to add the debian repo for my testing system as per the instructions <http://wiki.x2go.org/doku.php/wiki:repositories:debian#adding_this_reposito…>. I replace 'jessie' in the template with 'testing' but on apt-get update, I get the following error message: W: Conflicting distribution: http://packages.x2go.org testing InRelease (expected testing but got stretch) Stretch is the current testing name. Testing seems to be available here <http://packages.x2go.org/debian/dists/>, so I don't know what's causing this. Changing the dist name to stretch fixes the issue - however this will require changes to the sources.d file once the dist name changes in the future (not a big deal but still weird). Just wanted to let you know and would be interested in suggestions. Best, Sebastian

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Japsand Maintenance Aftermath a.k.a. "Lessons Learned"
by Mihai Moldovan 24 Jun '15

24 Jun '15

Hi Due to a hanging rm process, we had to restart the server today. After rebooting the machine, it was decided to also update the system to the latest packages version, but still staying on Debian Wheezy (for now.) The server is using a custom kernel module provided by Realtek for its RTL8168 ethernet NIC. An in-kernel driver is available, but proved to be too unreliable, leading to frequent network outages and even machine crashes whenever the network IO load was higher than a few hundred KB/s. The hosting provider has a wiki entry for this issue at this location: http://wiki.hetzner.de/index.php/Installation_des_r8168-Treibers/en Unfortunately, the current driver version as provided by Realtek, 8.040, seems to be incompatible with the old 3.2.0-4-amd64 (3.2.68-1+deb7u2) kernel provided by Debian. As of writing this, I do not know what happened exactly, but most likely the module caused a kernel panic during bootup. Reverting to an older version, 8.037, fixed this issue and let the server boot up correctly again. For future maintenance work, please use this older version, at least on Debian Wheezy. I put the module source code into /usr/src and created a symlink from /usr/src/r8168-current to /usr/src/r8168-8.037.00. --- Other updated packages include Java (version 7 co-installed, the "alternatives" symlink now point to version 7 instead of 6) and Jenkins, including its plugins. A test build run suggests the Jenkins update was successful. Mihai

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Re: [X2Go-User] [X2Go-Project] Japsand Down
by Mihai Moldovan 24 Jun '15

24 Jun '15

On 24.06.2015 09:46 PM, Mihai Moldovan wrote: > Japsand, our server also hosting the X2Go Wiki is currently down for unscheduled > maintenance. The server is back up and running again. Mihai

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Japsand Down
by Mihai Moldovan 24 Jun '15

24 Jun '15

[copy of the eMail that went to X2Go-Project] Hi Japsand, our server also hosting the X2Go Wiki is currently down for unscheduled maintenance. We cannot provide any ETA for when it will be back up. In case you need to access the wiki, please fall back to http://web.archive.org/web/20150624025754/http://wiki.x2go.org/doku.php for now. The mailing lists are still working as expected. Mihai

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I can't find x2godesktopsharing
by Jim Lynch 23 Jun '15

23 Jun '15

I am running Mint 17 (Ubuntu 14.04 derivative) and installed sudo add-apt-repository ppa:x2go/stable and per instructions: sudo aptitude install x2godeskstopsharing Couldn't find any package whose name or description matched "x2godeskstopsharing" So I downloaded http://code.x2go.org/releases/source/x2goserver/x2goserver-4.0.1.19.tar.gz and I don't find a trace of x2godeskstopsharing in the source code. What am I missing? Thanks, Jim.

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Mac Sound?
by Robert Dinse 23 Jun '15

23 Jun '15

Just curious how the Mac sound project is going? My Mac ate it's hard drive so haven't been able to try the most recent incarnation on Mac lately. -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_- 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.

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x2goclient on xubuntu 14.10 mini pc with arm processor , menus and icons not displayed
by Geir Sannes 19 Jun '15

19 Jun '15

I have installed x2goclient V 4.0.2.1(Qt - 4.8.6) with os xubuntu 14.10 and used x2goclient to logon to a linux server with Fedora linux v 22. I am able to logon without problems, but the top menu is not displayed. I am just able to see the background picture. I am further not able to for example rightclick the mouse to display menu. Xubuntu installed on a cloudsto mk902 mini pc with CPU - Rockchip RK3188 Quad Core (Cortex A9 Quad Core upto 1.6GHz) cpu. I am however able to workaround the problem by first starting an x2goclient session from for example a windows platform or from a memory stick with the ubuntu os, and then just close the session without logout clicking x in the top right corner of the screen. Resuming this session from the xubuntu mini pc, I do get the menu displayed correctly even though the colors get a little distorted. I have compared processes running starting a session from the xubuntu pc with no menu displayed as compared to a session in which the menu is displayed correctly, and it seems like processes have not been started when no menu is displayed, for example the following processes: xfwm4 /usr/lib64/xfce4/panel/wrapper /usr/lib64/xfce4/panel/plugins/libactions.so 2 14680095 actions Handlingknapper Logg ut, lås eller andre systemvalg /usr/lib64/xfce4/panel/wrapper /usr/lib64/xfce4/panel/plugins/libsystray.so 6 14680097 systray Systemkurv Område som viser beskjedikoner Any ideas as to what is causing this problem and a solution to problem? Error messages in the .xsession-x2go-errors log: (xfwm4:27814): xfwm4-WARNING **: The display does not support the XComposite extension. (xfwm4:27814): xfwm4-WARNING **: The display does not support the XFixes extension. (xfwm4:27814): xfwm4-WARNING **: Compositing manager disabled. (xfsettingsd:27847): xfsettingsd-CRITICAL **: Your XI is too old (1.3) version 1.4 is required. (xfwm4:27814): GLib-CRITICAL **: g_str_has_prefix: assertion 'prefix != NULL' failed xfce4-panel-migrate-Message: Panel config needs migration... xfce4-panel-migrate-Message: Panel configuration has been updated. (xfwm4:27814): xfwm4-WARNING **: The property '/general/double_click_distance' of type int is not supported xfce4-panel-Message: Plugin "xfce4-mixer-plugin-15" was not found and has been removed from the configuration (xfdesktop:27822): GLib-GIO-CRITICAL **: g_file_get_path: assertion 'G_IS_FILE (file)' failed (xfdesktop:27822): GLib-GIO-CRITICAL **: g_file_get_path: assertion 'G_IS_FILE (file)' failed (xfdesktop:27822): GLib-GIO-CRITICAL **: g_file_get_path: assertion 'G_IS_FILE (file)' failed (wrapper:27888): xfconf-WARNING **: Failed to set property "xfce4-panel::/plugins/plugin-6/names-visible": Permission denied while modifying property "/plugins/plugin-6/names-visible" on channel "xfce4-panel" (wrapper:27888): GLib-GObject-WARNING **: gsignal.c:3108: signal id '115' does not support detail (668) (wrapper:27888): Gdk-ERROR **: The program 'wrapper' received an X Window System error. This probably reflects a bug in the program. The error was 'BadWindow (invalid Window parameter)'. (Details: serial 256 error_code 3 request_code 4 minor_code 0) (Note to programmers: normally, X errors are reported asynchronously; that is, you will receive the error a while after causing it. To debug your program, run it with the --sync command line option to change this behavior. You can then get a meaningful backtrace from your debugger if you break on the gdk_x_error() function.) xfce4-panel-Message: Plugin "xfce4-mixer-plugin-15" was not found and has been removed from the configuration (wrapper:27999): xfconf-WARNING **: Failed to set property "xfce4-panel::/plugins/plugin-6/names-visible": Permission denied while modifying property "/plugins/plugin-6/names-visible" on channel "xfce4-panel" (wrapper:27999): GLib-GObject-WARNING **: gsignal.c:3108: signal id '115' does not support detail (668) Error messages found in the /var/log/messages file on x2go server related to problem: Jun 18 13:07:03 unmundo kernel: [32672.635951] panel-2-actions[32099]: segfault at 0 ip 00007f8f566a5abe sp 00007ffd8df6d390 error 4 in libXrender.so.1.3.0[7f8f566a1000+9000] Jun 18 13:07:03 unmundo kernel: [32672.649687] xfce4-panel[32006]: segfault at 0 ip 00007fab64618abe sp 00007ffc8dd965c0 error 4 Jun 18 13:07:03 unmundo kernel: [32672.649701] panel-6-systray[32097]: segfault at 0 ip 00007fac4b198abe sp 00007ffc643722e0 error 4 in libXrender.so.1.3.0[7fac4b194000+9000] Jun 18 13:07:03 unmundo kernel: [32672.649704] in libXrender.so.1.3.0[7fab64614000+9000] Regards g.s.

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x2gogetports and x2gogetdisplays Issues
by Hamish MacEwen 18 Jun '15

18 Jun '15

I'm trying to get a fresh install working on Ubuntu 12.04 and Fluxbox. Currently I'm trying to either connect to the existing display or run a custom command. I am simply testing via localhost for now. I can connect succesfully to the server however nothing happens once connected. I have turned up the logging level to debug and get constantly repeating syslog errors (every second) of; Jun 18 15:11:45 cfd-018 /usr/lib/x2go/x2gogetports[22002]: db_getports called, server: test-server; return value: Jun 18 15:11:45 cfd-018 /usr/lib/x2go/x2gogetdisplays[22033]: db_getdisplays called, server: test-server; return value: On running either x2gogetports or x2gogetdisplays manually they both produce the error; Died at /usr/lib/x2go/x2gogetports line 34. Died at /usr/lib/x2go/x2gogetdisplays line 34. Line 34 refers to 'my $host=shift or die;'. It seems like the scripts are unable to get a host and then prevents a display from being detected. However, the x2goclient has no problem detecting the displays. Using the following; X2Go Client v. 4.0.4.0 x2goagent: 3.5.0.31 x2goserver: 4.0.1.19 x2goserver-extensions: 4.0.1.19 x2goserver-xsession: 4.0.1.19 Any ideas on how to continue to debug this? Any ideas why this might be happening? Thanks Hamish

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X2go server does not work correctly when installed after nomachine nxserver 3.5.x
by Wendell Nichols 16 Jun '15

16 Jun '15

I attempted to replace the nomachine 3.5 product on my Centos 6.6 servers with an X2go server, but I cannot log on to it. The popup error is: Connection failed xset: unable to open display "" xset: unable to open display "" Most of the advice about this error suggests that ssh X remoting is not working, but I've verified that it is useing either an exported DISPLAY or the -X option. However; if I logon as root it works! If I create a NEW user on the server and logon to that it works. I just can't logon to a user that used to run NX! I took a problem user's home dir and moved it, and created an empty home, and x2go logs on correctly. So its something to do with the settings in the old home dirs as established by NX I suppose but I can't figure out what. Anyone got any ideas? Thanks in advance wendell nichols

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Re: [X2Go-User] CUPS X2Go (3.0.1.2) released
by Mihai Moldovan 14 Jun '15

14 Jun '15

Hi I normally do not announce new releases via our -user and -dev mailing lists. This time, the situation is special. Active users of cups-x2go should update as soon as possible due to the security fixes implemented in the new version. Non-active users of cups-x2go do not need to take immediate action, but are likewise encouraged to update. To make sure that cups-x2go is not being used, you can remove user accounts from the group fuse (or whatever is appropriate for your distribution.) As cups-x2go requires sshfs, non-access to fuse is a way to deny functionality. As cups-x2go is part of both Fedora and EPEL, this is of special interest for Orion. I will provide you with an CVE ID as soon as one has been assigned. It has been already requested. Mihai

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x2go-user June 2015