While winswitch client is trying to connect to some other winswitch server through m_DNS. It is failing to connect through ssh. Through Direct connection it succeeds. But, opening a remote application, doesn't shows on the requesting host.

I am running latest winswitch version 0.12.21, with xpra version 0.16.1. My both host system where connection is expected, is Ubuntu 15.04. I have also seen this issue in Ubuntu 15.10.

I tried to run the winswitch_applet in debug mode. Attaching a screenshot for the same.

as reported by @pmarek on irc:

ConfigureAppletWindow.apply_changes()
Traceback (most recent call last):
 File "winswitch/ui/config_common.py", line 621, in apply_changes
  self.do_apply_changes()
 File "winswitch/ui/config_applet.py", line 1014, in do_apply_changes
  self.applet.settings_modified()
 File "winswitch/client/applet.py", line 757, in settings_modified
  self.init_client_utils()
 File "winswitch/client/client_base.py", line 356, in init_client_utils
  self.client_utils[session_type] = constructor()
 File "winswitch/client/client_base.py", line 338, in rdp_common
 return     RDPClientUtil(self.update_session_status, self.notify)
 File "winswitch/virt/rdp_client_util.py", line 18, in __init__
  RDPClientBase.__init__(self, update_session_status, notify_callback)
 File "winswitch/virt/rdp_client_base.py", line 38, in __init__
  ClientUtilBase.__init__(self, WINDOWS_TYPE, update_session_status, notify_callback)
 File "winswitch/virt/client_util_base.py", line 48, in __init__
  self.options_defaults = self.load_options_defaults()
 File "winswitch/virt/client_util_base.py", line 58, in load_options_defaults
  props = self.get_options_defaults()
 File "winswitch/virt/rdp_client_base.py", line 373, in get_option
  props = self.get_options_defaults()
 File "winswitch/virt/rdp_client_base.py", line 373, in get_options_defaults
  d[KEYMAP] = self.get_default_keymap()
 File "winswitch/virt/rdp_client_base.py", line 85, in get_default_keymap
  if k in self.keymaps.keys():
AttributeError: RDPClientUtil instance has no attribute 'keymaps'

I cannot explain why keymaps is not defined... The RDPClientBase constructor looks like this:

		ClientUtilBase.__init__(self, WINDOWS_TYPE, update_session_status, notify_callback)
		self.ignore_process_returncodes.append(2)		#closing the window causes this returncode!
		if ENABLE_KEYMAP_OPTION:
			self.keymaps = self.find_all_keymaps()
			self.default_keymap = self.get_default_keymap()

(ENABLE_KEYMAP_OPTION is hardcoded to True) And this constructor is called by the RDPClientUtil constructor..

The NX windows end up dimming when using compiz on the client.

This bug entry is to track the problem so people know what to do wit it, it cannot be fixed here.

See: ​this patch

Ensure that your vendor supplies a patched version of nxagent.