Bonjour à tous!
Je galère depuis un petit moment déjà à (simplement) installer les drivers nVidia sur une fresh install de debian 9.5 avec gnome3… C’est un PC fixe avec Ubuntu 16.04 et Windows 10 où la GTX 970 fonctionne sans soucis.
- J’ai suivi la doc (https://wiki.debian.org/fr/NvidiaGraphicsDrivers) et installé la version 390.48 (via stretch-backports).
- Reboot pour blacklist nouveau et gnome3 crash (Ecran Oh no! Something has gone wrong!)
- Lu les logs de Xorg: impossible de charger “nv”
- Lancer nvidia-xconfig et reboot: La, l’écran clignote dans tous les sens durant le boot et il est difficile d’utiliser le clavier, même après avoir changé de terminal (ctrl + alt + f2). Tenté de placer la commande setpci dans le fichier /etc/rc.local mais ça ne fonctionne pas. (comme proposé dans la doc, section Dépannage)
- Lu les logs de Xorg: impossible d’initialiser le module kernel de nVidia, pas de carte ni d’écran détecté.
Votre aide me serait bien utile!
Merci d’avance 
lspci
lspci
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor PCI Express Root Port (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation 7 Series/C216 Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C216 Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 7 Series/C216 Chipset Family PCI Express Root Port 1 (rev c4)
00:1c.4 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 5 (rev c4)
00:1c.6 PCI bridge: Intel Corporation 82801 PCI Bridge (rev c4)
00:1d.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation Z77 Express Chipset LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 7 Series/C210 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C216 Chipset Family SMBus Controller (rev 04)
01:00.0 VGA compatible controller: NVIDIA Corporation GM204 [GeForce GTX 970] (rev a1)
01:00.1 Audio device: NVIDIA Corporation GM204 High Definition Audio Controller (rev a1)
03:00.0 Ethernet controller: Qualcomm Atheros AR8151 v2.0 Gigabit Ethernet (rev c0)
04:00.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 41)
Logs sans fichier de config
grep EE /var/log/Xorg.0.log
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 52.957] (EE) Failed to load module "nv" (module does not exist, 0)
[ 53.090] (EE) [drm] Failed to open DRM device for pci:0000:01:00.0: -19
[ 53.090] (EE) open /dev/dri/card0: No such file or directory
[ 53.090] (EE) open /dev/dri/card0: No such file or directory
[ 53.093] (EE) open /dev/fb0: No such file or directory
[ 53.093] (EE) open /dev/fb0: No such file or directory
[ 53.093] (EE) Screen 0 deleted because of no matching config section.
[ 53.093] (EE) Screen 0 deleted because of no matching config section.
[ 53.546] (EE) Failed to initialize GLX extension (Compatible NVIDIA X driver not found)
Logs avec config (nvidia-xconfig)
grep EE /var/log/Xorg.0.log
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 73.621] (EE) NVIDIA: Failed to initialize the NVIDIA kernel module. Please see the
[ 73.621] (EE) NVIDIA: system's kernel log for additional error messages and
[ 73.621] (EE) NVIDIA: consult the NVIDIA README for details.
[ 73.621] (EE) No devices detected.
[ 73.621] (EE)
[ 73.621] (EE) no screens found(EE)
[ 73.621] (EE)
[ 73.621] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[ 73.621] (EE)
[ 73.623] (EE) Server terminated with error (1). Closing log file.
Fichier de config
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig: version 384.111 (buildd@debian) Sun Feb 25 23:27:00 UTC 2018
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
EndSection
Section "Files"
EndSection
Section "InputDevice"
# generated from default
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/psaux"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
EndSection
Section "InputDevice"
# generated from default
Identifier "Keyboard0"
Driver "kbd"
EndSection
Section "Monitor"
Identifier "Monitor0"
VendorName "Unknown"
ModelName "Unknown"
HorizSync 28.0 - 33.0
VertRefresh 43.0 - 72.0
Option "DPMS"
EndSection
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Depth 24
EndSubSection
EndSection