Firstly i want to apologise for any mistakes, English is not my native language.

My problem is I can't get NVIDIA proprietary drivers to work. I tried to install it on Ubuntu 12.04.1 32 and 64 bits, Ubuntu 12.10 Beta 2, Linux Mint 13 Cinnamon 64 bits and openSUSE 12.2 64 bits and the error code and symptoms (logging to tty1 instead of GUI logging, low-res bootscreen) are the same for all of these distros.

Right, I didn't tell what's the error code. It appears on sudo startx.

NVIDIA: could not open the device file /dev/nvidia0 (Input/output error).

I know that's the common problem, but I tried to blacklist or even remove the noveau drivers, install NVIDIA driver from repo/from official script/in "Additional drivers", editing xorg.conf and using Xorg -configurate and nvidia-xconfig, actualizing the kernel and entire distro and many, many things that I don't remember. But the problem is even better: entire Cinnamon (Mint) is freezing during the work. I found the error code, which appears during the freeze:

Oct 1 20:57:17 WoozieLaptop kernel: [   308.120176] [drm] nouveau 0000:01:00.0:   PFIFO_CACHE_ERROR - Ch 4/1 Mthd 0z0060 Data 0xbcef0201

My Xorg.0.log is here. It was made on Ubuntu 12.04.1 after installing NVIDIA drivers (obviously).

inxi -G from Mint:

Graphics:    Card: NVIDIA GT216 [GeForce GT 240M]
             X.org: 1.11.3 drivers: (unloaded: nvidia)   FAILED:  nouveau,vesa,fbdev
             tty size: 80x25 Advanced Data: N/A for root out of X

lspci -k | grep -A2 VGA from Mint:

01:00.0 VGA compatible controller: NVIDIA Corporation GT216 [GeForce GT 240M] (rev a2)
   Subsystem: Lenovo Device 38ff
   Kernel driver in use: nvidia

My hardware is:

• Lenovo IdeaPad Y550
• Intel C2D T6600
• NVIDIA GeForce GT 240M
• 4 GB of RAM

Any help will be appreciated. This problem totally disabled my laptop from daily using.

Cheers,

Woozie