Oui oui bien didrod, je garde jamais le même pseudo pour l’anonyma…
Merci d’avoir ajouter la petite citation, j’ai oublié des info comme tu le constate, j’ai jeter une bouteille a la mer hier avant de me coucher 
CAT /etc/apt/sources.list donne ceci :
[code][root@yunohost] ~ # cat /etc/apt/sources.list
deb cdrom:[Debian GNU/Linux 6.0.5 Squeeze - Unofficial amd64 CD Binary-1 20120803-11:32]/ squeeze main non-free
#deb cdrom:[Debian GNU/Linux 6.0.5 Squeeze - Unofficial amd64 CD Binary-1 20120803-11:32]/ squeeze main non-free
deb http://ftp.debian.org/debian squeeze main non-free contrib
deb-src http://ftp.debian.org/debian squeeze main non-free contrib
deb http://lemonldap-ng.org/deb squeeze main
deb http://repo.yunohost.org/ squeeze main
deb http://repo.yunohost.org/ apps main
deb http://security.debian.org/ squeeze/updates main contrib non-free
deb-src http://security.debian.org/ squeeze/updates main contrib non-free
squeeze-updates, previously known as ‘volatile’
deb http://ftp.debian.org/debian squeeze-updates main contrib non-free
deb-src http://ftp.debian.org/debian squeeze-updates main contrib non-free[/code]
cat /etc/hosts :
[code][root@yunohost] ~ # cat /etc/hosts
127.0.0.1 localhost
127.0.1.1 yunohost.didrod.com yunohost
The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters[/code]
cat /etc/resolv.conf :
[root@yunohost] ~ # cat /etc/resolv.conf
nameserver 212.27.40.240
nameserver 212.27.40.241
cat /etc/hostname :
[root@yunohost] ~ # cat /etc/hostname
yunohost
voila j’espère que sa aidera. Je crois que sur le support yuno ont a déjà creuser la dessus… sans rien 
ce que j’ai oublié hier =
uname -aa
lspci
00:00.0 Host bridge: ATI Technologies Inc RD890 PCI to PCI bridge (external gfx0 port B) (rev 02)
00:02.0 PCI bridge: ATI Technologies Inc RD890 PCI to PCI bridge (PCI express gpp port B)
00:04.0 PCI bridge: ATI Technologies Inc RD890 PCI to PCI bridge (PCI express gpp port D)
00:09.0 PCI bridge: ATI Technologies Inc RD890 PCI to PCI bridge (PCI express gpp port H)
00:0a.0 PCI bridge: ATI Technologies Inc RD890 PCI to PCI bridge (external gfx1 port A)
00:11.0 SATA controller: ATI Technologies Inc SB700/SB800 SATA Controller [IDE mode] (rev 40)
00:12.0 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI0 Controller
00:12.2 USB Controller: ATI Technologies Inc SB700/SB800 USB EHCI Controller
00:13.0 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI0 Controller
00:13.2 USB Controller: ATI Technologies Inc SB700/SB800 USB EHCI Controller
00:14.0 SMBus: ATI Technologies Inc SBx00 SMBus Controller (rev 42)
00:14.1 IDE interface: ATI Technologies Inc SB700/SB800 IDE Controller (rev 40)
00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA) (rev 40)
00:14.3 ISA bridge: ATI Technologies Inc SB700/SB800 LPC host controller (rev 40)
00:14.4 PCI bridge: ATI Technologies Inc SBx00 PCI to PCI Bridge (rev 40)
00:14.5 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI2 Controller
00:15.0 PCI bridge: ATI Technologies Inc Device 43a0
00:16.0 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI0 Controller
00:16.2 USB Controller: ATI Technologies Inc SB700/SB800 USB EHCI Controller
00:18.0 Host bridge: Advanced Micro Devices [AMD] Device 1600
00:18.1 Host bridge: Advanced Micro Devices [AMD] Device 1601
00:18.2 Host bridge: Advanced Micro Devices [AMD] Device 1602
00:18.3 Host bridge: Advanced Micro Devices [AMD] Device 1603
00:18.4 Host bridge: Advanced Micro Devices [AMD] Device 1604
00:18.5 Host bridge: Advanced Micro Devices [AMD] Device 1605
01:00.0 VGA compatible controller: ATI Technologies Inc Manhattan [Mobility Radeon HD 5430 Series]
01:00.1 Audio device: ATI Technologies Inc Manhattan HDMI Audio [Mobility Radeon HD 5000 Series]
02:00.0 USB Controller: Device 1b6f:7023 (rev 01)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06)
04:00.0 USB Controller: Device 1b6f:7023 (rev 01)
05:0e.0 FireWire (IEEE 1394): VIA Technologies, Inc. VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller (rev c0)
lsusb
Bus 009 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 024: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse
Bus 007 Device 003: ID 045e:078c Microsoft Corp.
Bus 007 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 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Merci de votre aide 
EDIT : j’ai lu en cherchant que sa viendrait peut etre de la carte réseau, voici le pourquoi du titre du post. Il y avait des problème de firmware ou encore de noyau… je n’y connais rien donc je vous laisse interprété