Full data from lspci is on last post. That is the only video card, I have seen most laptops with that model also have an Intel board for use with all that bumblebee + primus + bbswitch stuff, but this seems to be a stand alone hw config.
A few days ago after a dist-upgrade kernel was upgraded to linux-image 3.13-1 and then, after reboot, nouveau driver stopped working. The error can be seen on kernel log:
...
[ 10.221643] nouveau [ VBIOS][0000:01:00.0] ... appears to be valid
[ 10.221644] nouveau [ VBIOS][0000:01:00.0] using image from PCIROM
[ 10.221725] nouveau [ VBIOS][0000:01:00.0] BIT signature found
[ 10.221727] nouveau [ VBIOS][0000:01:00.0] version 80.07.27.00.33
[ 10.221928] nouveau E[ VBIOS][0000:01:00.0] 0x83e0[ ]: unknown opcode
0x42
[ 10.221998] nouveau E[ DEVINIT][0000:01:00.0] init failed, -22
[ 10.222067] nouveau E[ DRM] failed to create 0x80000080, -22
[ 10.222344] nouveau: probe of 0000:01:00.0 failed with error -22
...
Then console mode is not changed and when KDM starts Xorg says nouveau driver can not be started and fails back to (i assume) vesafb:
...
[ 44.824] (II) NOUVEAU driver Date: Thu Nov 7 14:56:48 2013 +1000
[ 44.824] (II) NOUVEAU driver for NVIDIA chipset families :
[ 44.824] RIVA TNT (NV04)
[ 44.824] RIVA TNT2 (NV05)
[ 44.824] GeForce 256 (NV10)
[ 44.824] GeForce 2 (NV11, NV15)
[ 44.824] GeForce 4MX (NV17, NV18)
[ 44.824] GeForce 3 (NV20)
[ 44.824] GeForce 4Ti (NV25, NV28)
[ 44.824] GeForce FX (NV3x)
[ 44.824] GeForce 6 (NV4x)
[ 44.824] GeForce 7 (G7x)
[ 44.824] GeForce 8 (G8x)
[ 44.824] GeForce GTX 200 (NVA0)
[ 44.824] GeForce GTX 400 (NVC0)
[ 44.824] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[ 44.824] (II) FBDEV: driver for framebuffer: fbdev
[ 44.824] (II) VESA: driver for VESA chipsets: vesa
[ 44.824] (++) using VT number 7
[ 44.835] (EE) [drm] KMS not enabled
[ 44.835] (EE) open /dev/dri/card0: No such file or directory
[ 44.835] (WW) Falling back to old probe method for modesetting
[ 44.835] (EE) open /dev/dri/card0: No such file or directory
[ 44.835] (II) Loading sub module "fbdevhw"
...
Thanks.