Bug#196736: how to downgrade

[Matt Swift <swift@alum.mit.edu>]

> I'm also NOT able to downgrade to 4.2.1-6. apt-get install
> xfree86-common=4.2.1-6 don't find the package! Any hints about
> downgrading?

I had the same problem and downgraded to 4.2.1-6 by visiting the
Debian web and manually downloading the following packages into a
separate directory, then doing "dpkg -i * in it.  Things work as
before now.  

You could frobnicate the following list into a single "apt-get"
command.  You might need to set your sources.list to "testing" sources
and do an update first.  YMMV if you need a different profile of X
packages.

There may well be easier methods, but I don't know them.

libxaw6_4.2.1-6_i386.deb
libxaw7_4.2.1-6_i386.deb
xbase-clients_4.2.1-6_i386.deb
xdm_4.2.1-6_i386.deb
xfonts-100dpi_4.2.1-6_all.deb
xfonts-75dpi_4.2.1-6_all.deb
xfonts-base_4.2.1-6_all.deb
xfonts-scalable_4.2.1-6_all.deb
xfree86-common_4.2.1-6_all.deb
xlibmesa3-gl_4.2.1-6_i386.deb
xlibmesa3-glu_4.2.1-6_i386.deb
xlibs_4.2.1-6_i386.deb
xserver-xfree86_4.2.1-6_i386.deb
xterm_4.2.1-6_i386.deb
xutils_4.2.1-6_i386.deb
x-window-system-core_4.2.1-6_i386.deb