Simpler workaround for missing input devices on X of debian experimental

I reported a workaround of missing input devices on X of debian experimental
(About missing input devices of xserver under debian sid/experimental. - nozzy123nozzyの日記)
However, I found a bug report (#670156 - xserver-xorg-core: input devices no longer detected - Debian Bug report logs) and tried this,

sudo aptitude install sysvinit/sid
sudo aptitude install initscripts/sid

After this,a problem about missing input devices on X was totaly disappeared.And also another problem about missing alsa devices by pulseaudio was disappeared.

Last, I simply hold version of sysvinit and initscripts prevented from accidentialy upgrading from debian experimental.

sudo aptitude hold sysvinit initscripts