Comment 2 for bug 274639

I got the same problem.

This command returns no packages:
dpkg --get-selections | grep -v install

Installing and upgrading packages works perfectly fine, I have no held or broken packages that I know of.

And here's the command line output for jocky-gtk:
% jockey-gtk
Traceback (most recent call last):
  File "/usr/bin/jockey-gtk", line 346, in on_button_toggle_clicked
    'toggle', False):
  File "/usr/lib/python2.5/site-packages/jockey/ui.py", line 574, in set_handler_enable
    handler_id, enable)
  File "/usr/lib/python2.5/site-packages/jockey/backend.py", line 116, in polkit_auth_wrapper
    return fn(*args, **kwargs)
  File "/usr/lib/python2.5/site-packages/jockey/backend.py", line 87, in dbus_sync_call_signal_wrapper
    raise _h_exception_exc
dbus.exceptions.DBusException: org.freedesktop.DBus.Python.SystemError: Traceback (most recent call last):
  File "/var/lib/python-support/python2.5/dbus/service.py", line 696, in _message_cb
    retval = candidate_method(self, *args, **keywords)
  File "/usr/lib/python2.5/site-packages/jockey/backend.py", line 309, in _f_result_wrapper
    self._f_result = f()
  File "/usr/lib/python2.5/site-packages/jockey/xorg_driver.py", line 157, in enable
    KernelModuleHandler.enable(self)
  File "/usr/lib/python2.5/site-packages/jockey/handlers.py", line 439, in enable
    Handler.enable(self)
  File "/usr/lib/python2.5/site-packages/jockey/handlers.py", line 224, in enable
    self.backend.install_package(self.package)
  File "/usr/lib/python2.5/site-packages/jockey/backend.py", line 543, in install_package
    hasattr(self, '_locations') and self.install_progress or None)
  File "/usr/lib/python2.5/site-packages/jockey/oslib.py", line 220, in install_package
    c[package].markInstall()
  File "/usr/lib/python2.5/site-packages/apt/package.py", line 421, in markInstall
    fixer.Resolve(True)
SystemError: E:Unable to correct problems, you have held broken packages.

lsb_release -rd
Description: Ubuntu intrepid (development branch)
Release: 8.10