X2Go Bug report logs - #726
use /proc/cmdline to tweak multi-head TCs

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From: owner@bugs.x2go.org (X2Go Bug Tracking System)
Subject: Bug#726 closed by X2Go Release Manager X2Go Release Manager
 <git-admin@x2go.org> (X2Go issue (in src:x2gothinclient) has been marked
 as closed)
Message-ID: <handler.726.c.15437208949232.notifdone@bugs.x2go.org>
References: <20181202031916.9EEA45DAF0@ymir.das-netzwerkteam.de>
X-X2go-PR-Keywords: pending patch
X-X2go-PR-Message: they-closed 726
X-X2go-PR-Package: x2gothinclient
X-X2go-PR-Source: x2gothinclient
Date: Sun, 02 Dec 2018 03:25:12 +0000
Content-Type: multipart/mixed; boundary="----------=_1543721112-10242-0"

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This is an automatic notification regarding your Bug report
which was filed against the x2gothinclient package:

#726: use /proc/cmdline to tweak multi-head TCs

It has been closed by X2Go Release Manager X2Go Release Manager <git-admin@x2go.org>.

Their explanation is attached below along with your original report.
If this explanation is unsatisfactory and you have not received a
better one in a separate message then please contact X2Go Release Manager X2Go Release Manager <git-admin@x2go.org> by
replying to this email.


-- 
X2Go Bug Tracking System
Contact owner@bugs.x2go.org with problems

[Message part 2 (message/rfc822, inline)]

From: X2Go Release Manager X2Go Release Manager <git-admin@x2go.org>

To: 726-submitter@bugs.x2go.org

Cc: control@bugs.x2go.org, 726@bugs.x2go.org

Subject: X2Go issue (in src:x2gothinclient) has been marked as closed

Date: Sun, 2 Dec 2018 04:19:16 +0100 (CET)

close #726
thanks

Hello,

we are very hopeful that X2Go issue #726 reported by you
has been resolved in the new release (1.5.0.0) of the
X2Go source project »src:x2gothinclient«.

You can view the complete changelog entry of src:x2gothinclient (1.5.0.0)
below, and you can use the following link to view all the code changes
between this and the last release of src:x2gothinclient.

    http://code.x2go.org/gitweb?p=x2gothinclient.git;a=commitdiff;h=448f3812eca5180f48b57d7988732eecd14b47dd;hp=d1a83c17ca9568f8ef5ec2bb89e754db5e8b7df3

If you feel that the issue has not been resolved satisfyingly, feel
free to reopen this bug report or submit a follow-up report with
further observations described based on the new released version
of src:x2gothinclient.

Thanks a lot for contributing to X2Go!!!

light+love
X2Go Git Admin (on behalf of the sender of this mail)

---
X2Go Component: src:x2gothinclient
Version: 1.5.0.0-0x2go1
Status: RELEASE
Date: Sun, 02 Dec 2018 04:10:28 +0100
Fixes: 419 718 719 726 840 997 1092 1136 1147
Changes:
 x2gothinclient (1.5.0.0-0x2go1) RELEASED; urgency=low
 .
   [ Mike Gabriel ]
   * New upstream release (1.5.0.0):
     - Stop advertising GNOME in default session profile. Switching to MATE.
     - Use type=auto for automatic keyboard detection as default in example
       session profiles.
     - Avoid error message in x2gothinclient_shell if the chroot does not have
       a file-or-symlink /etc/resolv.conf.
     - Use resolv.conf file from host system when running x2gothinclient_upgrade.
     - Add COPYING file.
     - Run x2gothinclient_shell and x2gothinclient_upgrade with LANG=C.
     - Don't run x2gothinclient_init inside TCE chroot operations
       (x2gothinclient_shell or x2gothinclient_upgrade).
     - Avoid x2gothinclient_init failures, use if..then..fi instead of
       the test command.
     - Init scripts: Provide status option.
     - Use lazy unmounts for unmounting bind-mounted /proc, /sys, /dev/pts
       after exiting the TCE chroot (x2gothinclient_create, x2gothinclient_shell,
       x2gothinclient_upgrade, x2gothinclient_cleanup).
     - Assure that a tmpfs under <chroot>/root gets mounted and cleanly
       unmounted (x2gothinclient_shell, x2gothinclient_upgrade).
     - Use run-parts to initialize the TCE during runtime. (Fixes: #419).
     - New TCE component: x2gothinclient-minidesktop. Instead of using
       X2Go Client as login manager, we launch a minimal MATE desktop and
       connect to X2Go sessions from there.
       . Add WindowList applet to MATE panel.
       . On $HOME creation, copy x2gothinclient-minidesktop.desktop into
         ~/Desktop.
       . Provide init script for x2gothinclient-minidesktop to handle maintenance
         tasks if TCE is installed with in minidesktop flavour.
       . Tweak MATE minidesktop via GScheme overrides.
       . Launch MATE minidesktop via LightDM autologin feature.
       . Add XDG autostart .desktop file for the TCE's X2Go Client.
       . Add VERSION.<package> file for x2gothinclient-minidesktop.
       . Make X2Go TCE layout / appearance overridable by installing
         debian-edu-artwork package.
       . Use default X2Go Client background for x2gothinclient-minidesktop.
         Provide configurable desktop background instead. Install desktop
         background as desktop-base alternative.
       . On minidesktop TCE creation based on wheezy, pull in packages from
         wheezy-backports (i.e. MATE desktop environment).
       . MATE Application menu: Move the default X2Go Client .desktop file out
         of the way (dpkg-divert) and provide the TCE's .desktop file instead.
       . Make sure that launching x2goclient via a terminal or the run command
         box in MATE results in the restricted TCE X2Go Client.
       . Make contrib and non-free software available on minidesktop TCE
         creation.
       . Disallow Caja to handle storage media (automounting, opening, etc.).
       . Enable usbmounts and smartcard rules for minidestop TCE flavour.
       . Enforce TCE session restart after logout.
       . Provide Web browser shortcut in the MATE panel.
       . Enable native-protocol-tcp module in pulseaudio on every X2Go Client
         launch. Allow access from local host only, require auth cookie.
     - Adapt management package to TCE flavouring. Add new configuration
       option in x2gothinclient_settings: TC_FLAVOUR (can be: minidesktop or
       displaymanager).
     - Use proper quotations in several X2Go TCE scripts.
     - Don't choke if /etc/resolv.conf in the TCE chroot is a symbolic link
       (in x2gothinclient_shell, x2gothinclient_upgrade).
     - README.i18n: Add file that explains the translation workflow for
       this package. Thanks to Mark Pedersen-Cook for drafting this file.
     - For X2Go TCE in display manager mode, set login backgrounds of all
       screens (if more than one is used) to a blue'ish background color.
       (Fixes: #718).
     - TCE in display manager mode: Don't align multiple heads next to
       one another if a (Wacom) touchscreen is detected in the list of heads.
       (Fixes: #719).
     - management/sbin/x2gothinclient_update: Create
       $TC_CHROOT/etc/x2go/x2gothinclient_init.d/ before copying files into it.
     - management/sbin/x2gothinclient_update: Consider known_hosts2 FreeRDP host
       key files, known_hosts was used for FreeRDP v1.x and are in fact
       deprecated nowadays.
     - management/sbin/x2gothinclient_create: Stop using deprecated --force-yes.
     - 010_x2gothinclient-fresh-home: Install FreeRDPv2's known_hosts2 file into
       ~x2gothinclient user's home dir when creating a fresh home.
     - x2gothinclient_sessions: Provide RDP-Direct session profile example that
       utilizes FreeRDPv2 rather than deprecated FreeRDPv1.x. (On Debian stretch,
       it is recommended to use FreeRDPv2 from Debian stretch-backports).
     - x2gothinclient-<TC-FLAVOUR>_start: Drop requirement of having symlink
       /etc/x2go/x2gothinclient_start. Now all code passages that use the _start
       wrapper, use the x2gothinclient-<TC-FLAVOUR>_start file directly.
   * debian/control:
     + Rename bin:package: x2gothinclient -> x2gothinclient-daemon.
     + Make sure x2gothinclient-minidesktop pulls in X11 and X2Go Client.
     + New bin:package: x2gothinclient-common. Commonly shared by
       x2gothinclient-minidesktop and x2gothinclient-displaymanager
     + Add D (displaymanager flavour, minidesktop flavour): pinentry-x2go.
     + Add D (x2gothinclient-minidesktop): lightdm.
     + Add R (x2gothinclient-minidesktop): flashplugin-nonfree.
     + Add R (x2gothinclient-chroot): ntp.
     + Move to Pre-D (x2gothinclient-minidesktop): x2goclient, lightdm. Make
       sure those packages are installed already avoiding dpkg-divert failures.
     + Allow co-installation of displaymanager and minidesktop bin:pkgs. They
       have no conflicting files and we should rather make the startup mode
       configurable through debconf.
   * debian/copyright:
     + Use copyright-format 1.0.
 .
   [ Stefan Baur ]
   * New upstream release (1.5.0.0):
     - Allow Xinerama / XRandR setup via /proc/cmdline. (Fixes: #726).
   * usbmount/x2gousbmount:
     - Make user pseudo-selectible via a variable and fix usage across file.
     - Try to create file-sharing facilities harder.
     - Fix desktop/thinclient mode detection. Fixes: #1136.
     - Set default username to x2gothinclient for MATE minidesktop builds, even
       for X2GO TCE Live builds.
     - Add support for (V)FAT, NTFS, HFS, HPFS and EXT* (via fuse-ext2) file
       systems.
 .
   [ Mark Pedersen-Cook ]
   * debian/po:
     + Add DebConf translation to Danish.
 .
   [ Kaan Ozdincer ]
   * debian/po:
     + Add DebConf translation to Turkish.
 .
   [ Mihai Moldovan ]
   * New upstream release (1.5.0.0):
     - Change string "X2go" to "X2Go" where appropriate.
     - displaymanager/init/x2gothinclient-displaymanager.init: fix unchanged
       "gdm" string in log message. Fixes: #997.
     - management/share/etc/x2gothinclient-minidesktop_start: correctly
       continue commented out command on the next line. Fixes: #1147.
     - displaymanager/sbin/x2gothinclientd: correctly break long strings over
       several lines and concatenate them.
     - management/share/etc/x2gothinclient_init.d/
       950_x2gothinclient-minidesktop: call Xsession in mate-minidesktop builds
       of X2Go TCE Live.
     - misc: update copyright notices, but for Mike Gabriel.
     - README.howto: fix typos.
     - misc: update http:// to https:// URLs where appropriate.
     - misc: drop whitespace from hashbangs.
     - debian/x2gothinclient-common.postrm: newline at EOF change.
     - misc: update Oleksandr's mail address.
     - misc manpages: whitespace only.
     - misc manpages: pre-release version and date updates.
     - cdmanager/powerej/mb.{cpp,h}: whitespace only.
     - cdmanager/powerej/powerej.pro: regenerate with Qt5's qmake and merge.
     - cdmanager/powerej/eject.cpp: use PlastiqueStyle with Qt4 and Fusion with
       Qt5.
     - cdmanager/powerej/eject.cpp: include QStyleFactory.
     - misc manpages: pre-release date update.
   * usbmount/x2gousbmount:
     - Fix typo int -> print. Fixes: #840.
     - Update copyright notice.
     - Fix left-over check_x2gothinclientd definition (should have been
       check_x2gothinclientmode).
   * debian/control:
     - Whitespace only.
     - x2gothinclient-cdmanager: drop libqt4-gui Depends. Already handled by
       libqt4-dev Build-Depends and shlibs and misc Depends.
     - Maintainer change in package: X2Go Developers <x2go-dev@lists.x2go.org>.
     - Uploaders: add myself. Also, force a rebuild due to the changed
       versioning.
     - Resurrect x2go{thinclient-management,usbmount,cdmanager,smartcardrules}
       as dummy packages in the spirit of x2gothinclient for a smooth upgrade
       path.
     - mate-media-pulse and mate-settings-daemon-pulse are gone in Stretch.
       Depend on them lightly.
     - Replace iceweasel dependency with firefox-esr. All suites provide the
       newer name. Avoids an ugly outdated menu entry.
     - Build-depend upon Qt5 instead of Qt4.
     - Bump DH compat level to 9.
   * management/share/etc/x2gothinclient-minidesktop_start:
     - Correctly quote pactl command line arguments, avoids the shell
       interpreting the embedded semicolon as a command separator.
   * debian/po:
     - Minor fixup on author name.
     - Regenerate templates and files.
     - Update template with metadata.
     - fr.po: update metadata.
     - Update bugs address in template.
     - Update translation metadata.
     - da.po: fixup.
     - de.po: fixup.
   * debian/copyright:
     - Remove obsolete and wrong obviouslynice.de address.
   * debian/rules:
     - Whitespace only.
     - Switch to building cdmanager/powerej via Qt5.
     - Modernize respective build flags.
     - Add all clause.
     - Make sure to select Qt5 variant, even though we probably won't use
       debhelper to build Qt projects.
     - Call qmake instead of qmake-qt5.
   * debian/compat:
     - Bump DH compat level to 9.
 .
   [ Oleksandr Shneyder ]
   * x2gothinclientd: load config file when starting PulseAudio. Fixes: 1092.
   * upgrade to debian stretch.
   * set oldsatble to jessie in x2gothinclient_settings.
   * install linux-image-4.9.0-4-686 instead of dummy-package
   * add pxelinux in recommends for x2gothinclient-management
   * fix links in x2gothinclient_preptftpboot
   * fix link in x2gothinclient_create
   * install chroot for amd64
   * fix x2gothinclient_update to create files needed by x2gothinclientd
   * let user choose architecture by setting TC_ARCH variable. Default amd64.
   * improve support for gnupg and dbus.
   * modify x2gothinclientd to start scripts needed by gpg agent.
   * install meta-package for linux-image to get most recent version. Thanks to Mike for the hint.
   * start openbox to make xinerama work. Thanks to Walid Moghrabi for the hint.
   * fix Xorg checking in x2gothinclientd.
   * remove nomedeset option from x2go-tce.cfg. This option prevent loading of drm and disabling advanced graphic functions.
   * add openbox dependency.
   * do not start openbox any more. Xinerama issue should be fixed in x2goagent.
 .
   [ Martti Pitkänen ]
   * debian/po:
     + Add DebConf translation to Finnish.
 .
   [ Thierry Kauffmann ]
   * New upstream release (1.5.0.0):
     - debian/po: add French translation file.

[Message part 3 (message/rfc822, inline)]

From: Stefan Baur <X2Go-ML-1@baur-itcs.de>

To: submit@bugs.x2go.org

Subject: Clone screens for touch-enabled devices

Date: Tue, 06 Jan 2015 15:08:33 +0100

[Message part 4 (text/plain, inline)]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

package: x2gothinclient
version: 1.1.0.2
priority: wishlist
Control: tag -1 patch

Hi,

when using a touch-enabled device (like a tablet computer) as a
thinclient, the cursor isn't properly aligned when you try to run a
second display (non-touch-enabled) alongside with it.

What happens is that both displays get attached to form one large
virtual screen, however, your touch-enabled surface obviously still
only covers the primary display.

The X server doesn't understand this, and tries to map your movements
on the primary display to the entire virtual screen surface, so the
further to the side and to the bottom you get, the more off your mouse
pointer will be from the actual position where you touch your primary
display.

  PRI     SEC                 VIRT
+-----+ +-----+            +----------+
|X    | |     |            |O         |
|     | |     |            |          |
|     | |     |            |          |
|     | |     |            |          |
+-----+ +-----+            +----------+

+-----+ +-----+            +----------+
|     | |     |            |          |
|     | |     |            |          |
|   \ | |   / |            |       O  |
|     | |     |            |          |
+-----+ +-----+            +----------+


\ = where you touch
/ = where X draws the cursor in reality
X = overlapping \ and /
O = where X believes the cursor is, on the virtual screen

There's no sensible way to use a touch-enabled device with a second
screen and no additional, external pointing device, so I've added this
patch/workaround that switches to clone mode instead.

Of course, if you give up on using the touchscreen and plug in a USB
mouse or other external pointing device, you could use two screens.
This patch doesn't cover that situation.

Maybe someone else has an idea on what a sensible solution could look
like that covers this as well?  Like, scan for USB HID pointing
devices ("find /dev/input -name "mouse*" | wc -l") and, if present in
addition to a touchscreen, don't clone, but do side-by-side s if no
touch device was detected at all?
Tht might have some additional caveats, though, like the detection
mis-firing if the touch component of a tablet device "cloaks" as mouse
or offers some sort of mouse emulation support.
Also, in that case, it would probably be smart to disable the touch
interface completely so as to not confuse users why their touches
don't align with the cursor.  Does anybody know of a generic way to do
this?

Again, input/suggestions welcome.

- -Stefan

- -- 
BAUR-ITCS UG (haftungsbeschränkt)
Geschäftsführer: Stefan Baur
Eichenäckerweg 10, 89081 Ulm | Registergericht Ulm, HRB 724364
Fon/Fax 0731 40 34 66-36/-35 | USt-IdNr.: DE268653243
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[clone-screens-for-touch-enabled-devices-x2gothinclientd.patch (text/plain, attachment)]

[clone-screens-for-touch-enabled-devices-x2gothinclientd.patch.sig (application/octet-stream, attachment)]

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