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Ticket Resolution Summary Owner Reporter
#224 notabug Winswitch on Win 7 Antoine Martin Demontager

I need to use Win7 Ultimate machine as server for applications and Lubuntu 12.10 as client. The problem is i don't see any applications available to launch in tray icon menu - not in Windows 7 neither Lubuntu. Sure i connected to server and vice-versa. I tried to match same protocol - nx on Win7 and Linux, but no result. When checking connection configuration i see this -

Seamless Default "None available! Microsoft Microsoft Windows limitations"

Desktop Default "None available! Microsoft Microsoft Windows limitations" So i assume the problem in Win 7 Ultimate support. I used before to connect to Windows 2003 Server from Gentoo and it just worked fine.

#225 duplicate winswitch_server doesn't work on Ubuntu 12.10 Antoine Martin Thomas Käfer

Hi there again!

I am running Ubuntu 12.10 and it seems it doesn't work as a server, client works well.

Here is the error that the winswitch_server prints:

[code][EE] 2012/14/11 20:23:16.011215 WinSwitchServer.ready()
[ee] 2012/14/11 20:23:16.011909 Traceback (most recent call last):
[ee] 2012/14/11 20:23:16.011967   File "/usr/lib/python2.7/dist-packages/winswitch/server/", line 316, in ready
[ee] 2012/14/11 20:23:16.012006     self.assign_virt_utils()
[ee] 2012/14/11 20:23:16.012033   File "/usr/lib/python2.7/dist-packages/winswitch/server/", line 405, in assign_virt_utils
[ee] 2012/14/11 20:23:16.012056     from winswitch.virt.vnc_server_util import VNCServerUtil
[ee] 2012/14/11 20:23:16.012078   File "/usr/lib/python2.7/dist-packages/winswitch/virt/", line 16, in <module>
[ee] 2012/14/11 20:23:16.012099     from winswitch.virt.server_util_base import ServerUtilBase
[ee] 2012/14/11 20:23:16.012120   File "/usr/lib/python2.7/dist-packages/winswitch/virt/", line 40, in <module>
[ee] 2012/14/11 20:23:16.012141     from winswitch.util.xkbmap_util import set_keymap
[ee] 2012/14/11 20:23:16.012161   File "/usr/lib/python2.7/dist-packages/winswitch/util/", line 173
[ee] 2012/14/11 20:23:16.012183 SyntaxError: Non-ASCII character '\xc3' in file /usr/lib/python2.7/dist-packages/winswitch/util/ on line 173, but no encoding declared; see for details

Please tell me what I can do to track down the problem

#226 fixed b2a_base64() argument 1 must be string or read-only buffer, not None Antoine Martin ryanofsky

I'm seeing the following error trying to connect from a 0.12.17 client on lucid to a 0.12.17 server on gentoo:

Traceback (most recent call last):
  File "/usr/lib/python2.6/dist-packages/twisted/internet/", line 249, in run
  File "/usr/lib/python2.6/dist-packages/twisted/internet/", line 120, in wrapper
    return real_cb(real_s, condition)
  File "/usr/lib/python2.6/dist-packages/twisted/internet/", line 283, in callback
    self.simulate() # fire Twisted timers
  File "/usr/lib/python2.6/dist-packages/twisted/internet/", line 293, in simulate
--- <exception caught here> ---
  File "/usr/lib/python2.6/dist-packages/twisted/internet/", line 778, in runUntilCurrent
    call.func(*call.args, **
  File "/usr/lib/pymodules/python2.6/winswitch/client/", line 603, in start_login
  File "/usr/lib/pymodules/python2.6/winswitch/client/", line 397, in add_current_user
  File "/usr/lib/pymodules/python2.6/winswitch/net/", line 90, in binencode
    return	binencode(data, self.binary_encodings)
  File "/usr/lib/pymodules/python2.6/winswitch/util/", line 21, in binencode
    return	BASE64_PREFIX + base64.b64encode(data)
  File "/usr/lib/python2.6/", line 53, in b64encode
    encoded = binascii.b2a_base64(s)[:-1]
exceptions.TypeError: b2a_base64() argument 1 must be string or read-only buffer, not None

The connection shows up as successful, but no applications or sessions are available. This problem also happens with 0.12.16, but goes away if I downgrade the client to 0.12.15.

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