Hi,

I use an Asus X53SC series laptop that has a Nvidia GT520MX graphics card(uses optimus technology).

I am dual-booting Kali linux 1.0.2 amd 64 (Gnome) version with Windows 7. Before Kali I had Mint Linux 14 wherein Bumblebee worked fine.

I followed the below page to install bumblebee. It is the way to install with wheezy and sid as mentioned in debian wiki.
http://suwako.nomanga.net/

I use bumblebee because without it my laptop overheats(Goes upto 90 deg.). I found bumblebee when I had the same problem with Mint.

lspci :

Code:
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5)
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b5)
00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b5)
00:1c.5 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 6 (rev b5)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 05)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05)
01:00.0 VGA compatible controller: NVIDIA Corporation GF119 [GeForce GT 520MX] (rev ff)
03:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
04:00.0 USB controller: ASMedia Technology Inc. ASM1042 SuperSpeed USB Host Controller
05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06)
dmesg here due to upload limit: http://pastebay.net/1201634

lspci -vmk | grep -A 8 -B 2 VGA :

Code:
Device:   00:02.0
Class:   VGA compatible controller
Vendor:   Intel Corporation
Device:   2nd Generation Core Processor Family Integrated Graphics Controller
SVendor:   ASUSTeK Computer Inc.
SDevice:   Device 1682
Rev:   09
Driver:   i915
Module:   i915

--

Device:   01:00.0
Class:   VGA compatible controller
Vendor:   NVIDIA Corporation
Device:   GF119 [GeForce GT 520MX]
Rev:   ff
ProgIf:   ff

Device:   03:00.0
Class:   Network controller
Vendor:   Atheros Communications Inc.
Right now all i get is a command line login prompt.
During bumblebee installation, I xorg.conf file was not present. The installer said this. So I ran nvidia-xconfig.
so a xorg.conf file was created.

Please help me out.