[SID] Problème chargement gnome 3

Bonjour,

J’ai voulu faire une réinstallation propre de ma tablette. Je n’avais qu’un CD de la debian 6.0.2 stable.

J’installe donc cette version, j’effectue les dernières mises à jours de cette version stable. Tout fonctionne.
Maintenant il ne manque plus qu’à modifier mon fichier sources.list :

## Sid/unstable                                                                               ##
deb http://ftp.fr.debian.org/debian/ sid main contrib non-free ##
deb-src http://ftp.fr.debian.org/debian/ sid main contrib non-free ##                                                                                              ##

## Sid multimedia                                                                             ##
deb http://mirror.home-dn.net/debian-multimedia/ sid main ##
deb-src http://mirror.home-dn.net/debian-multimedia/ sid main ##
## Fin   

J’effectue mon aptitude update, mon dist-upgrade (celui-ci me donne un petit problème à la fin avec gstreamer).

Je redémarre la tablette et je me logue puis reste figé sur le fond d’écran debian avec le curseur de la souris qui fonctionne…
Je ne peux qu’ouvrir ma session en mode restreint.

Des idées ? Merci d’avance !

PS : Je n’ai rien installé de superflu entre l’installation de la version stable puis la mise à jour vers la SID.

lspci

00:00.0 Host bridge: Intel Corporation N10 Family DMI Bridge
00:02.0 VGA compatible controller: Intel Corporation N10 Family Integrated Graphics Controller
00:02.1 Display controller: Intel Corporation N10 Family Integrated Graphics Controller
00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 04)
00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 04)
00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 04)
00:1c.2 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 3 (rev 04)
00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 04)
00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 04)
00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 04)
00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 04)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f4)
00:1f.0 ISA bridge: Intel Corporation 82801HEM (ICH8M) LPC Interface Controller (rev 04)
00:1f.1 IDE interface: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) IDE Controller (rev 04)
00:1f.2 IDE interface: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA IDE Controller (rev 04)
00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 04)
01:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
02:00.0 Multimedia controller: Broadcom Corporation BCM70015 Video Decoder [Crystal HD]

lsusb

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 005: ID 12d1:1404 Huawei Technologies Co., Ltd. 
Bus 002 Device 006: ID 04f2:b213 Chicony Electronics Co., Ltd 
Bus 003 Device 002: ID 0eef:72a1 D-WAV Scientific Co., Ltd 
Bus 005 Device 002: ID 0603:00f2 Novatek Microelectronics Corp. 
Bus 005 Device 003: ID 046d:c019 Logitech, Inc. Optical Tilt Wheel Mouse
Bus 006 Device 002: ID 0cf3:3005 Atheros Communications, Inc. AR3011 Bluetooth

En fait, je viens de refaire l’installation et il s’avère que l’erreur viendrait du côté de xserver-xorg-input-7. COmment remédier à ce problème ?

Mon nouveau sources.list

## ==================================================
## squeeze
deb http://ftp.fr.debian.org/debian/ squeeze main contrib non-free
deb-src http://ftp.fr.debian.org/debian/ squeeze main contrib non-free

## squeeze multimedia
deb http://www.debian-multimedia.org squeeze main non-free
deb-src http://www.debian-multimedia.org squeeze main non-free

## squeeze security
deb http://security.debian.org/ stable/updates main contrib non-free
deb-src http://security.debian.org/ stable/updates main contrib non-free

## squeeze updates  
deb http://ftp.fr.debian.org/debian/ squeeze-updates main contrib non-free
deb-src http://ftp.fr.debian.org/debian/ squeeze-updates main contrib non-free

## squeeze-backports
deb http://backports.debian.org/debian-backports squeeze-backports main contrib non-free

## ==================================================
## wheezy
deb http://ftp.fr.debian.org/debian/ wheezy main contrib non-free
deb-src http://ftp.fr.debian.org/debian/ wheezy main contrib non-free

## wheezy multimedia
deb http://www.debian-multimedia.org wheezy main non-free
deb-src http://www.debian-multimedia.org wheezy main non-free

## wheezy security
deb http://security.debian.org/ wheezy/updates main contrib non-free
deb-src http://security.debian.org/ wheezy/updates main contrib non-free

## ==================================================
## sid
deb http://ftp.fr.debian.org/debian/ sid main contrib non-free
deb-src http://ftp.fr.debian.org/debian/ sid main contrib non-free

## sid multimedia
deb http://www.debian-multimedia.org sid main non-free
deb-src http://www.debian-multimedia.org sid main non-free

## ==================================================
## experimental
deb http://ftp.fr.debian.org/debian/ experimental main contrib non-free
# deb-src http://ftp.fr.debian.org/debian/ experimental main contrib non-free

## experimental multimedia (Seulement pour architecture amd64)
deb http://www.debian-multimedia.org experimental main
# deb-src http://www.debian-multimedia.org experimental main

Mon fichier preferences

Package: *
Pin: release o=Unofficial Multimedia Packages,a=experimental,l=Unofficial Multimedia Packages
Pin-Priority: 1