Ecco cosa è successo esattamente:

sh-2.05b$ pwd
/home/zaltar/Downloads/gdesklets/rssgrab-0.6.2
sh-2.05b$ gdesklets rssgrab.display
Could not connect to gnome-session. GNOME session management will not be
available for this application.
gDesklets 0.26
Copyright (C) 2003, 2004 Martin Grimme, Christian Meyer, Jesse Andrews

This software is licensed under the terms of the GNU GPL.

OPTS:: [] REST:: ['rssgrab.display']
sh-2.05b$ gdesklets &
[1] 8295
sh-2.05b$ Could not connect to gnome-session. GNOME session management will not be
available for this application.
gDesklets 0.26
Copyright (C) 2003, 2004 Martin Grimme, Christian Meyer, Jesse Andrews

This software is licensed under the terms of the GNU GPL.

OPTS:: [] REST:: []
Could not load sensor rssgrab
Could not load sensor rssgrab
Could not load sensor rssgrab
closing 1086628043550304622797576
collected garbage: 66 uncollectable: 0
closing 1086628059950265414874609
collected garbage: 0 uncollectable: 0
purging 1086628043550304622797576
purging 1086628059950265414874609
Traceback (most recent call last):
File "/usr/local/bin/gdesklets", line 76, in ?
starter.start_displays()
File "/usr/local/share/gdesklets/main/Starter.py", line 250, in start_displays
self.__on_watch(None, None)
File "/usr/local/share/gdesklets/main/Starter.py", line 88, in __on_watch
self.__add_display(ident, displays[ident])
File "/usr/local/share/gdesklets/main/Starter.py", line 115, in __add_display
dsp = self.__create_display(ident, path)
File "/usr/local/share/gdesklets/main/Starter.py", line 172, in __create_display
admin.remove_display(ident)
File "/usr/local/share/gdesklets/main/admin.py", line 93, in remove_display
del displays[id]
KeyError: '1086628059950265414874609'


Accidenti! Ho visto nel topic la mia schermata centinaia di volte Xfce con Gdesklets e ora che uso questo WM non riesco a far funzionare questa interessante utilità.