[Dell Precision M4800] No Unity 3D support on nVidia GK106GLM [10de:11fc] with open-source driver

CID: 201305-13527 Dell Precision M4800

With "Enable Switchable Graphics" disabled in the BIOS, this system would use software rendering in Unity.

ubuntu@201305-13527:~$ /usr/lib/nux/unity_support_test -c -p
OpenGL vendor string: VMware, Inc.
OpenGL renderer string: Gallium 0.4 on llvmpipe (LLVM 3.4, 256 bits)
OpenGL version string: 2.1 Mesa 10.1.3

Not software rendered: no
Not blacklisted: yes
GLX fbconfig: yes
GLX texture from pixmap: yes
GL npot or rect textures: yes

Compiz supported: no

But with that aforementioned option enabled, it won't have this issue.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-44-generic 3.13.0-44.73
ProcVersionSignature: Ubuntu 3.13.0-44.73-generic 3.13.11-ckt12
Uname: Linux 3.13.0-44-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ubuntu 1439 F.... pulseaudio
 /dev/snd/controlC1: ubuntu 1439 F.... pulseaudio
CRDA:
 country TW:
  (2402 - 2472 @ 40), (3, 27)
  (5270 - 5330 @ 40), (3, 17), DFS
  (5735 - 5815 @ 40), (3, 30)
CurrentDesktop: Unity
Date: Fri Jan 16 02:21:07 2015
HibernationDevice: RESUME=UUID=4e3c0183-4d3f-495e-8d6a-57e2b23e6412
InstallationDate: Installed on 2015-01-16 (0 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
MachineType: Dell Inc. Precision M4800
ProcFB:
 0 inteldrmfb
 1 nouveaufb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-44-generic root=UUID=3edd6366-27b1-41af-88d4-ac1abe216d8f ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-44-generic N/A
 linux-backports-modules-3.13.0-44-generic N/A
 linux-firmware 1.127.11
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/03/2014
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A11
dmi.board.name: 0FVDR2
dmi.board.vendor: Dell Inc.
dmi.board.version: X02
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA11:bd12/03/2014:svnDellInc.:pnPrecisionM4800:pvr01:rvnDellInc.:rn0FVDR2:rvrX02:cvnDellInc.:ct9:cvr:
dmi.product.name: Precision M4800
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.