x2go-dev April 2021

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by X2Go Bug Tracking System 19 Apr '21

19 Apr '21

Processing commands for control(a)bugs.x2go.org: > tags 1228 - fixed pending Bug #1228 [x2goserver] Implement basic dialog handling in X2Go Server Removed tag(s) pending. > tags 1540 - fixed pending Bug #1540 [x2goserver] Fix unexpected resume Ignoring request to alter tags of bug #1540 to the same tags previously set > thanks Stopping processing here. Please contact me if you need assistance. -- 1228: bugs.x2go.org/cgi-bin/bugreport.cgi?bug=1228 1540: bugs.x2go.org/cgi-bin/bugreport.cgi?bug=1540 X2Go Bug Tracking System Contact owner(a)bugs.x2go.org with problems

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Packing methods
by Ulrich Sibiller 06 Apr '21

06 Apr '21

Hi, in the source code of x2goclient you can find the list of supported image compression methods (in res/txt/packs). After checking back with what I documented for nx (see https://github.com/ArcticaProject/nx-libs/issues/802) there are some compression methods that are _not_ supported by nx: 256-rdp 256-rdp-compressed 32k-rdp 32k-rdp-compressed 64k-rdp 64k-rdp-compressed 16m-rdp 16m-rdp-compressed rfb-hextile rfb-tight rfb-tight-compressed 8-tight 64-tight 256-tight 512-tight 4k-tight 32k-tight 64k-tight 256k-tight 2m-tight 16m-tight Judging from their name they seem to be related to Windows Remote Desktops and VNC. I read somewhere that x2goclient once offered rdp support but AFAICS it does no longer offers/supports that. So are these compression methods obsolete or am I missing something here? What about the compression settings for x2gokdrive? Uli

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Bug#1540: Fix unexpected resume
by Ulrich Sibiller 02 Apr '21

02 Apr '21

Package: x2goserver Version: 4.1.0.3 Fix long-standing but #829 (https://bugs.x2go.org/cgi-bin/bugreport.cgi?bug=829) See attached patch

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Bug#1539: Add package x2godialog
by Ulrich Sibiller 02 Apr '21

02 Apr '21

Package: x2goserver Version: 4.1.0.3 Add a new package x2godialog (basically a link to nxdialog) See attached patch.

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X2go client window misplaced in LXQt
by Kalle Tuulos 02 Apr '21

02 Apr '21

I'm running Lubuntu 20.04, which has LXQt. The X2go client has been installed using apt method, current version is 4.1.2.2. When the X2Go client is opened and closed, on the next time, it will open on 30 pixels higher and 2 pixels left position, than the earlier position. This can be seen from file ~/.x2goclient/sizes: Before opened: [mainwindow] maximized=false pos=@Point(275 170) size=@Size(1017 600) Window is not moved, just closed: [mainwindow] maximized=false pos=@Point(273 140) size=@Size(1017 600) Opened and closed again, not moved: [mainwindow] maximized=false pos=@Point(271 110) size=@Size(1017 600) This same problem is in many Qt based applications, so this is not X2go problem as such, but on the Qt framework. Also, this same problem was already on 18.04 version of Ubuntu, on another computers. I have a workaround for this - the sizes files is overwritten on each login with a valid one. Is there any more clever fix for this? BR, Kalle -- - Kalle

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GitLab Install LXC - Update (issue)
by Melroy van den Berg 01 Apr '21

01 Apr '21

Hi all, I tried to omnibus GitLab install on the VM. Failed on: Expected process to exit with [0], but received '255' ---- Begin output of sysctl -e -p /opt/gitlab/embedded/etc/90-omnibus-gitlab-kernel.shmmax.conf ---- STDOUT: STDERR: sysctl: setting key "kernel.shmmax": Read-only file system ---- End output of sysctl -e -p /opt/gitlab/embedded/etc/90-omnibus-gitlab-kernel.shmmax.conf ---- Ran sysctl -e -p /opt/gitlab/embedded/etc/90-omnibus-gitlab-kernel.shmmax.conf returned 255 Due to: command "sysctl -e -p /opt/gitlab/embedded/etc/90-omnibus-gitlab-kernel.shmmax.conf" causing the error: sysctl: setting key "kernel.shmmax": Read-only file system Read-only of the /sys/ directory is typical the case with LCX containers... But the advice value of the shmax is: cat /opt/gitlab/embedded/etc/90-omnibus-gitlab-kernel.shmmax.conf kernel.shmmax = 17179869184 I can complete the setup if you want, by using a workaround by commenting-out the related section in: /opt/gitlab/embedded/cookbooks/cache/cookbooks/package/resources/gitlab_sysctl.rb. And run: gitlab-ctl reconfigure. But I rather like to get this working in a correct manner. Maybe somebody add at this shmmax statement above to the host /etc/sysctl.conf file? Let me know if somebody can help me with this or which direction you want to go. Ps. where are not the only one on the internet: http://letmegooglethat.com/?q=STDERR%3A+sysctl%3A+setting+key+%22kernel.shm… Thx! Kind regards, Melroy van den Berg

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Bug#1533: Mac client: connection timeout 30 seconds after session start
by Ricky Charlet 01 Apr '21

01 Apr '21

Package: unknown Version: 4.1.2.2 Howdy, When I connect from Mac client to ubuntu server, I get a “connection timeout” 30 seconds after “connection start.” Other people can connect to my server. Error message is: Loop: WARNING! Overriding auxiliary X11 port with new value '1'. Warning: Overriding auxiliary X11 port with new value '1'. Info: Connecting to remote host 'localhost:36652'. Info: Connected to remote proxy on FD#11. Info: Connection with remote proxy completed. Loop: WARNING! Unrecognized session type 'unix-kde-depth_32'. Assuming agent session. Warning: Unrecognized session type 'unix-kde-depth_32'. Assuming agent session. Info: Using ADSL link parameters 1408/24/1/0. Info: Using cache parameters 4/4096KB/8192KB/8192KB. Info: Using pack method '16m-jpeg-9' with session 'unix-kde-depth_32'. Info: Using ZLIB data compression 1/1/32. Info: Using ZLIB stream compression 4/4. Info: No suitable cache file found. Info: Forwarding X11 connections to display '/private/tmp/com.apple.launchd.E12k8P0IX6/org.xquartz:0'. Info: Forwarding auxiliary X11 connections to display '/private/tmp/com.apple.launchd.E12k8P0IX6/org.xquartz:0'. Session: Session started at 'Fri Mar 19 09:38:16 2021'. Connection timeout, abortingSession: Terminating session at 'Fri Mar 19 09:38:46 2021'. Info: Waiting the cleanup timeout to complete. Session: Session terminated at 'Fri Mar 19 09:38:47 2021'. On the server, in /var/log/messages, I get what appears to be a success report: Mar 19 09:38:16 hpnsw4371 /usr/bin/x2gostartagent: successfully started X2Go Agent session with ID charletr-50-1616171893_stDMATE_dp32 I have a tcpdump (is in an ssh tunnel, to a little vague) which shows client sending dup packet not quite, but almost 30 seconds into session attempt. 116 33.763841 15.116.49.166 16.99.147.244 SSHv2 108 Server: [TCP Spurious Retransmission] , Encrypted packet (len=64) 117 33.763941 16.99.147.244 15.116.49.166 TCP 56 [TCP Dup ACK 114#1] 64138 → 22 [ACK] Seq=3239 Ack=5027 Win=262144 Len=0 SLE=4963 SRE=5027 Client = MacOS 10.15.7 (Catalina…and due to corp policy, I cannot upgrade); x2go 4.1.2.2 with qt 4.8.7 with xquartz 2.7.11 with xorg 1.18.4 Server : x2goversion : 1.0.2.4 : 0.0.1.6 : 4.1.0.3 : 4.1.0.3 : 4.1.0.3 : 4.1.0.3 : 4.1.0.3 : 3.5.99.22 : 4.1.0.3

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x2goagent segfaults with x2goclient from ubuntu 20.10
by Kenneth Johansson 01 Apr '21

01 Apr '21

so I have been using x2go for years and its works fine for what I need but today it stopped working. the error message was not really clear so I deleted and reinstalled (server and client) but still no go. Turns out its the x2goagent that segfaults on the server side. The client is an ubuntu 20.10 and the servers I tested with is debian 10 and ubuntu 20.04. To make sure that there was no version mismatch I then installed the server on the ubuntu 20.10 computer and tried to connect to localhost and still get the segfault. how to debug this ?? what I try to do is use a single application and start "command=/usr/bin/xterm" since its not working even to localhost this should be something that a lot more people have a problem with than just me. I have deleted all configurations for both server and client and the only thing I change when I create a new session is the host login session type. So I do not see how I could have made something wrong here.

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x2go-dev April 2021