xserver-xorg-video-nouveau removes xserver-xorg-input-kbd xserver-xorg-input-mouse and others

[Rainer Dorsch <ml@bokomoko.de>]

Hello,

I am wondering why upgrading xserver-xorg-video-nouveau removes the keyboard 
and mouse input modules xserver-xorg-input-kbd xserver-xorg-input-mouse. Are 
they not needed anymore with the new version of xorg?

paddy:~# apt-get install -t squeeze-backports xserver-xorg-video-nouveau
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following package was automatically installed and is no longer required:
  libxcb-dri2-0
Use 'apt-get autoremove' to remove them.
The following extra packages will be installed:
  libdrm-intel1 libdrm-nouveau1a libgl1-mesa-dri libxfont1 xserver-common 
xserver-xorg xserver-xorg-core xserver-xorg-input-evdev xserver-xorg-input-
synaptics xserver-xorg-input-wacom xserver-xorg-video-apm xserver-xorg-video-
chips xserver-xorg-video-cirrus
  xserver-xorg-video-i128 xserver-xorg-video-i740 xserver-xorg-video-intel 
xserver-xorg-video-savage xserver-xorg-video-sis xserver-xorg-video-sisusb 
xserver-xorg-video-tseng xserver-xorg-video-vesa xserver-xorg-video-vmware
Suggested packages:
  libglide3 gpointing-device-settings touchfreeze xinput
The following packages will be REMOVED:
  libdrm-nouveau1 xserver-xorg-input-kbd xserver-xorg-input-mouse xserver-
xorg-video-dummy xserver-xorg-video-nv
The following NEW packages will be installed:
  libdrm-nouveau1a
The following packages will be upgraded:
  libdrm-intel1 libgl1-mesa-dri libxfont1 xserver-common xserver-xorg xserver-
xorg-core xserver-xorg-input-evdev xserver-xorg-input-synaptics xserver-xorg-
input-wacom xserver-xorg-video-apm xserver-xorg-video-chips xserver-xorg-
video-cirrus xserver-xorg-video-i128
  xserver-xorg-video-i740 xserver-xorg-video-intel xserver-xorg-video-nouveau 
xserver-xorg-video-savage xserver-xorg-video-sis xserver-xorg-video-sisusb 
xserver-xorg-video-tseng xserver-xorg-video-vesa xserver-xorg-video-vmware
22 upgraded, 1 newly installed, 5 to remove and 53 not upgraded.
Need to get 21.5 MB of archives.
After this operation, 8524 kB of additional disk space will be used.
Do you want to continue [Y/n]? 

BTW, aptitude suggests the same.

Many thanks,
Rainer