Package: x2goclient

Version: 4.0.2.1-1(Qt - 4.8.6)

Client os: xubuntu 14.10

client pc: rikomagic mk902II LE with CPU - Rockchip RK3188 Quad Core (Cortex A9 Quad Core upto 1.6GHz)

Session settings: session type XFCE

Processor type: ARM

Server os Fedora release 21 (Twenty One)

Package: x2goserver.x86_64 4.0.1.19-1.fc21 @updates

x2goserver-xsession.x86_64 4.0.1.19-1.fc21 @updates

x2goserver-fmbindings.x86_64 4.0.1.19-1.fc21 @updates
x2goclient.x86_64 4.0.3.2-1.fc21 updates
x2godesktopsharing.x86_64 3.1.1.1-3.fc21 fedora
x2goplugin.x86_64 4.0.3.2-1.fc21 updates
x2goplugin-provider.x86_64 4.0.3.2-1.fc21 updates
x2goserver-printing.x86_64 4.0.1.19-1.fc21 updates

x2goagent.x86_64 3.5.0.29-1.fc21 @updates

# yum list nxagent*
Loaded plugins: langpacks
Installed Packages
nxagent.x86_64 3.5.0.29-1.fc21 @updates

Problem:

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.

Workaround:

I am able to workaround the problem by first starting an
x2goclient session from for example a windows platform with intel cpu or from a memory
stick with the ubuntu os booting using a pc with intel cpu, 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.

Analysis:

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

Errors in log files on Fedora server:

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

(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.