Dependencies error on xserver - Impossible to install xorg, xserver-xorg, ...

[Braulio]

I removed the xserver-xorg and xorg and now i can't install anything
neither fix broken dependencies... I've tried everything i found in
internet, but nothing useful.

I made apt-get update, upgrade, dpkg, apt-get -f install ....

Here there are the dependencies i can't solve:

xorg : Depends: xserver-xorg (>= 1:7.6+7ubuntu7.1) but it is not going
to be installed

---------
xserver-xorg : Depends: xserver-xorg-core (>= 2:1.9.99.901+git20110131)
but it is not going to be installed
                 Depends: xserver-xorg-video-all but it is not going to
be installed or
                          xorg-driver-video
                 Depends: xserver-xorg-input-all but it is not going to
be installed or
                          xorg-driver-input
                 Depends: xserver-xorg-input-evdev but it is not going
to be installed
------------------
xserver-xorg-core : Depends: libpciaccess0 (>= 0.12.902) but 0.12.1-2 is
to be installed
--------------
xserver-xorg-input-evdev : Depends: xorg-input-abi-16
                             Depends: xserver-xorg-core (>= 2:1.11.99)
but it is not going to be installed
---------------
xserver-xorg-input-all : Depends: xserver-xorg-input-evdev but it is not
going to be installed
                           Depends: xserver-xorg-input-synaptics but it
is not going to be installed
                           Depends: xserver-xorg-input-vmmouse but it is
not going to be installed
                           Depends: xserver-xorg-input-wacom but it is
not going to be installed
-----------------
xserver-xorg-core : Depends: libpciaccess0 (>= 0.12.902) but 0.12.1-2 is
to be installed
--------------

I think the "loop" ends with libpciaccess0, since is the only one i've
already installed, but i can't purge/reinstall neither solve it.

How can i fix the problem?

Thank you.

  affects xorg-server
# affects xorg
# affects xserver-xorg-core
# affects xorg-input-avi-16
# affects xserver-xorg-input-all
# affects xserver-xorg-video-all
# affects xserver-xorg-input-all
...so on
# affects libpciaccess0

PS: I'm not really sure which is the specific project that is affected