Монитор показывает «нет сигнала» после установки драйвера Nvidia (Ubuntu 12.04 amd64)

Я использую Ubuntu 12.04 amd64 Последнее, что я вижу перед этим сообщением, это заставка загрузки Ubuntu.

Аппаратная конфигурация:

• Материнская плата Gigabyte 970a-ud3
• Процессор AMD Phenom II X4 975
• 8 ГБ ОЗУ
• NVIDIA Корпорация GT200 [GeForce GTX 260]

Я пытался удалить xorg.conf, но ничего не изменилось. И теперь я понятия не имею, что мне делать, чтобы это работало.

Вот выдержка из /var/log/Xorg.0.log, которая, кажется, имеет смысл.

[    13.956] (==) Matched nvidia as autoconfigured driver 0
[    13.956] (==) Matched nouveau as autoconfigured driver 1
[    13.956] (==) Matched nv as autoconfigured driver 2
[    13.956] (==) Matched vesa as autoconfigured driver 3
[    13.956] (==) Matched fbdev as autoconfigured driver 4
[    13.956] (==) Assigned the driver to the xf86ConfigLayout
[    13.956] (II) LoadModule: "nvidia"
[    13.956] (WW) Warning, couldn't open module nvidia
[    13.956] (II) UnloadModule: "nvidia"
[    13.956] (II) Unloading nvidia
[    13.956] (EE) Failed to load module "nvidia" (module does not exist, 0)
[    13.956] (II) LoadModule: "nouveau"
[    13.957] (II) Loading /usr/lib/xorg/modules/drivers/nouveau_drv.so
[    13.957] (II) Module nouveau: vendor="X.Org Foundation"
[    13.957]    compiled for 1.11.3, module version = 0.0.16
[    13.957]    Module class: X.Org Video Driver
[    13.957]    ABI class: X.Org Video Driver, version 11.0
[    13.957] (II) LoadModule: "nv"
[    13.957] (WW) Warning, couldn't open module nv
[    13.957] (II) UnloadModule: "nv"
[    13.957] (II) Unloading nv
[    13.957] (EE) Failed to load module "nv" (module does not exist, 0)
[    13.957] (II) LoadModule: "vesa"
[    13.957] (II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so
[    13.957] (II) Module vesa: vendor="X.Org Foundation"
[    13.957]    compiled for 1.11.3, module version = 2.3.0
[    13.957]    Module class: X.Org Video Driver
[    13.957]    ABI class: X.Org Video Driver, version 11.0
[    13.957] (II) LoadModule: "fbdev"
[    13.957] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so
[    13.957] (II) Module fbdev: vendor="X.Org Foundation"
[    13.957]    compiled for 1.11.3, module version = 0.4.2
[    13.957]    ABI class: X.Org Video Driver, version 11.0
[    13.957] (==) Matched nvidia as autoconfigured driver 0
[    13.957] (==) Matched nouveau as autoconfigured driver 1
[    13.957] (==) Matched nv as autoconfigured driver 2
[    13.957] (==) Matched vesa as autoconfigured driver 3
[    13.957] (==) Matched fbdev as autoconfigured driver 4
[    13.957] (==) Assigned the driver to the xf86ConfigLayout
[    13.957] (II) LoadModule: "nvidia"
[    13.958] (WW) Warning, couldn't open module nvidia
[    13.958] (II) UnloadModule: "nvidia"
[    13.958] (II) Unloading nvidia
[    13.958] (EE) Failed to load module "nvidia" (module does not exist, 0)
[    13.958] (II) LoadModule: "nouveau"
[    13.958] (II) Loading /usr/lib/xorg/modules/drivers/nouveau_drv.so
[    13.958] (II) Module nouveau: vendor="X.Org Foundation"
[    13.958]    compiled for 1.11.3, module version = 0.0.16
[    13.958]    Module class: X.Org Video Driver
[    13.958]    ABI class: X.Org Video Driver, version 11.0
[    13.958] (II) UnloadModule: "nouveau"
[    13.958] (II) Unloading nouveau
[    13.958] (II) Failed to load module "nouveau" (already loaded, 0)
[    13.958] (II) LoadModule: "nv"
[    13.958] (WW) Warning, couldn't open module nv
[    13.958] (II) UnloadModule: "nv"
[    13.958] (II) Unloading nv
[    13.958] (EE) Failed to load module "nv" (module does not exist, 0)
[    13.958] (II) LoadModule: "vesa"