Michael, thanks, that was it! I had installed the packages as root and tried them out as root (not a good idea I know, but I was lazy), while running the the X11 display as user. Worse is that I have done that many times. One more thing learned. Thanks again, Rainer
On Thursday 23 October 2014 19:35:00 Michael Lawrence wrote: > Perhaps this is a permissions (Xauthority) issue: is the same user running > both the X11 display and the R session? > > > > On Thu, Oct 23, 2014 at 2:40 AM, R <rainer.schuerm...@gmx.net> wrote: > > > I have written some gWidgets scripts before in the past but have a > > different box now (Debian KWheezy) and cannot get gWidgets working. It may > > be an obvious mistake but auntie Google (who has helped me a lot to get as > > far as I am now) leaves me in the dark now. > > Here is where I am stuck: > > - - - - - > > > library( gWidgets ) > > > library( gWidgetsRGtk2 ) > > Loading required package: RGtk2 > > No protocol specified > > R session is headless; GTK+ not initialized. > > > obj <- gbutton("Hello world", container = gwindow()) > > > > (R:15675): GLib-GObject-WARNING **: invalid (NULL) pointer instance > > > > (R:15675): GLib-GObject-CRITICAL **: g_signal_connect_data: assertion > > `G_TYPE_CHECK_INSTANCE (instance)' failed > > > > (R:15675): Gtk-WARNING **: Screen for GtkWindow not set; you must always > > set > > a screen for a GtkWindow before using the window > > > > (R:15675): Gdk-CRITICAL **: IA__gdk_screen_get_default_colormap: assertion > > `GDK_IS_SCREEN (screen)' failed > > > > (R:15675): Gdk-CRITICAL **: IA__gdk_colormap_get_visual: assertion > > `GDK_IS_COLORMAP (colormap)' failed > > > > (R:15675): Gdk-CRITICAL **: IA__gdk_screen_get_default_colormap: assertion > > `GDK_IS_SCREEN (screen)' failed > > > > (R:15675): Gdk-CRITICAL **: IA__gdk_screen_get_root_window: assertion > > `GDK_IS_SCREEN (screen)' failed > > > > (R:15675): Gdk-CRITICAL **: IA__gdk_screen_get_root_window: assertion > > `GDK_IS_SCREEN (screen)' failed > > > > (R:15675): Gdk-CRITICAL **: IA__gdk_window_new: assertion `GDK_IS_WINDOW > > (parent)' failed > > > > *** caught segfault *** > > address 0x18, cause 'memory not mapped' > > > > Traceback: > > 1: .Call(name, ..., PACKAGE = PACKAGE) > > 2: .RGtkCall("S_gtk_widget_show", object, PACKAGE = "RGtk2") > > 3: method(obj, ...) > > 4: window$Show() > > 5: .gwindow(toolkit, title, visible, width, height, parent, handler, > > action, ...) > > 6: .gwindow(toolkit, title, visible, width, height, parent, handler, > > action, ...) > > 7: gwindow() > > 8: .gbutton(toolkit, text, border, handler, action, container, ...) > > 9: .gbutton(toolkit, text, border, handler, action, container, ...) > > 10: gbutton("Hello world", container = gwindow()) > > > > > > - - - - - > > > sessionInfo() > > R version 3.1.1 (2014-07-10) > > Platform: x86_64-pc-linux-gnu (64-bit) > > > > locale: > > [1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C > > [3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8 > > [5] LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8 > > [7] LC_PAPER=en_US.UTF-8 LC_NAME=C > > [9] LC_ADDRESS=C LC_TELEPHONE=C > > [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C > > > > attached base packages: > > [1] stats graphics grDevices utils datasets methods base > > > > loaded via a namespace (and not attached): > > [1] tools_3.1.1 > > > > ______________________________________________ > > R-help@r-project.org mailing list > > https://stat.ethz.ch/mailman/listinfo/r-help > > PLEASE do read the posting guide > > http://www.R-project.org/posting-guide.html > > and provide commented, minimal, self-contained, reproducible code. > > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.