x2go-dev August 2015

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25 participants
137 discussions

Bug#98: Use a IRC bot to inject Git commit messages into #x2go on irc.freenode.net
by Mike Gabriel 23 Feb '16

23 Feb '16

Package: git.x2go.org Severity: wishlist Use a IRC bot to inject Git commit messages into #x2go on irc.freenode.net. kjellski on IRC proposed a piece of code (simple-bot) as descriped here: https://wiki.icinga.org/display/community/GIT+Commit+Bot Mike -- DAS-NETZWERKTEAM mike gabriel, rothenstein 5, 24214 neudorf-bornstein 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#898: Weird colors and image issues on ppc64le Ubuntu 14.04
by Mihai Moldovan 23 Feb '16

23 Feb '16

Package: nx-libs Version: 3.5.0.29 After building and installing X2Go packages on Ubuntu 12.04 ppc64le some months ago, I experienced the following strange behavior(s): - image colors were distorted sometimes (but sometimes not) - instead of brown, pink was shown - images (PNG? SVG?) didn't load or show correctly. Colors were way off (see above) and mostly only contours drawn, if even that. - scrolling in a scrollview (e.g., XFCE's settings manager(?)) sometimes forced a correct redraw of images, but mostly only partitially - hovering over an image broke it visually again - mouse cursor either disappeared completely or was replaced with a block (what seemed to be random data converted to an image) I have not done any debugging on these issues yet. Mihai

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Bug#900: Gedit, gnome-terminal and others crash in rootless mode
by Camilo Alejandro Arboleda 23 Feb '16

23 Feb '16

Package: libnx-X11 Version: 2.3.5 Setup: 1. x2goserver in a debian testing machine. 2. x2goclient in a windows machine. 3. Create a session with a virtual desktop. 4. Run gedit in the session created in 3. 5. Create a session in windows launching only xterm. 6. Run gedit from the console created in 5. 7. Create a session in windows launching only gedit. Results: 1. Steps from Setup 3, 4 and 5 work fine. 2. Steps from Setup 6 and 7 crash (close the session). A quick look in dmesg shows that *libNX_X11.so.6.2* caused a SEGFAULT. Running x2goagent with a debugger gives the following backtrace: *(gdb) backtrace* #0 _XData32 (dpy=dpy@entry=0xf591b0, data=data@entry=0x163c2c4, len=len@entry=18652) at XlibInt.c:3775 #1 0x00007f759e34dce1 in XChangeProperty (dpy=0xf591b0, w=<optimized out>, property=<optimized out>, type=6, format=<optimized out>, mode=<optimized out>, data=0x163c2c4 "\377\377\377\377\354\356\356\377\377\377\377\377\354\356\356\377\377\377\377\377\354\356\356\377\377\377\377\377\357\360\360\377\377\377\377\377\364\365\365\377\377\377\377\377\307\312\311\375\377\377\377\377\t\t\t\035", nelements=4663) at ChProp.c:85 #2 0x00000000004b1e37 in nxagentExportProperty (pWin=0x20, property=*4663*, type=23315140, format=4669, mode=32, nUnits=*4663*, value=0x15fc2e0) at Rootless.c:763 #3 0x000000000042222a in ProcChangeProperty (client=0xf591b0) at X/NXproperty.c:331 #4 0x000000000042eea2 in Dispatch () at X/NXdispatch.c:748 Looking at the highlighted values, it seems that gedit is sending a malformed ChangeProperty request, and rootless is failing to process it. Specifically the segment between lines 735-780, tries to set a property that is bigger than the maximum size required, but because it's a malformed request it ends up writing in memory outside the boundaries of the output buffer. Alternatives: 1. Ensure that nxagentExportProperty never writes beyond the boundaries of the output buffer. 2. Resize the output buffer to match the required size (ProcChangeProperty seems to do something similar). 3. Ignore big requests (see attached patch). --

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Bug#874: move Xinerama code from libNX_Xinerama to hw/nxagent
by Mike Gabriel 23 Feb '16

23 Feb '16

Package: nxagent Version: 3.5.0.32 Severity: wishlist This bug is a tracking bug for the new Xinerama rewrite in nx-libs 3.6.x. All Xinerama or LD_LIBRARY_PATH related issues in X2Go will be merged into this bug. 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#114: debbugs still produces weird mails of the form <package-name>@
by Mike Gabriel 22 Feb '16

22 Feb '16

Package: bugs.x2go.org Severity: important See undeliv mail report below... Mike ----- Weitergeleitete Nachricht von MAILER-DAEMON(a)das-netzwerkteam.de ----- Datum: Fri, 1 Feb 2013 09:40:04 +0100 (CET) Von: Mail Delivery System <MAILER-DAEMON(a)das-netzwerkteam.de> Betreff: Undelivered Mail Returned to Sender An: root(a)das-netzwerkteam.de This is the mail system at host ymir. I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below. For further assistance, please send mail to postmaster. If you do so, please include this problem report. You can delete your own text from the attached returned message. The mail system <nx-libs@>: bad address syntax <x2goserver@>: bad address syntax ----- Ende der weitergeleiteten Nachricht ----- -- DAS-NETZWERKTEAM mike gabriel, rothenstein 5, 24214 neudorf-bornstein 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#417: Two screens, wrong screen used for limits of positioning context menus
by Mike Gabriel 20 Feb '16

20 Feb '16

Control: merge -1 #874 merging #417 into the tracking bug #874 for the Xinerama rewrite. 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#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#875: upgrade to nx-libs 3.6.x in X2Go
by Mike Gabriel 20 Feb '16

20 Feb '16

Package: nx-libs Version: 3.5.0.31 Severity: wishlist This will be a tracking bug for all issue reported against nx-libs 3.5.0.x that are fixed (by what reason ever) in nx-libs 3.6.x. 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#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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x2go-dev August 2015