lintux@lintux-Q550LF:~$ sudo apt-get clean
[sudo] password for lintux: 
lintux@lintux-Q550LF:~$ sudo apt-get clean
lintux@lintux-Q550LF:~$ sudo apt-get install nvidia-346 nvidia-prime nvidia-settings
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  gcc-4.8-base:i386 libdrm-intel1:i386 libdrm-nouveau2:i386
  libdrm-radeon1:i386 libedit2:i386 libelf1:i386 libexpat1:i386 libffi6:i386
  libgl1-mesa-dri-lts-vivid:i386 libgl1-mesa-glx-lts-vivid:i386
  libglapi-mesa-lts-vivid:i386 libllvm3.6:i386 libpciaccess0:i386
  libstdc++6:i386 libturbojpeg libturbojpeg:i386 libtxc-dxtn-s2tc0:i386
  libx11-6:i386 libx11-xcb1:i386 libxau6:i386 libxcb-dri2-0:i386
  libxcb-dri3-0:i386 libxcb-glx0:i386 libxcb-present0:i386 libxcb-sync1:i386
  libxcb1:i386 libxdamage1:i386 libxdmcp6:i386 libxext6:i386 libxfixes3:i386
  libxshmfence1:i386 libxv1:i386 libxxf86vm1:i386
  linux-image-generic-lts-vivid primus-libs primus-libs:i386
  primus-libs-ia32:i386 socat virtualgl virtualgl-libs virtualgl-libs:i386
  virtualgl-libs-ia32:i386
Use 'apt-get autoremove' to remove them.
The following extra packages will be installed:
  nvidia-libopencl1-346 nvidia-opencl-icd-346
The following NEW packages will be installed:
  nvidia-346 nvidia-libopencl1-346 nvidia-opencl-icd-346 nvidia-prime
  nvidia-settings
0 upgraded, 5 newly installed, 0 to remove and 1 not upgraded.
Need to get 65.7 MB of archives.
After this operation, 312 MB of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://us.archive.ubuntu.com/ubuntu/ trusty-updates/restricted nvidia-346 amd64 346.82-0ubuntu0.2 [57.0 MB]
Get:2 http://us.archive.ubuntu.com/ubuntu/ trusty-updates/restricted nvidia-libopencl1-346 amd64 346.82-0ubuntu0.2 [16.9 kB]
Get:3 http://us.archive.ubuntu.com/ubuntu/ trusty-updates/restricted nvidia-opencl-icd-346 amd64 346.82-0ubuntu0.2 [7,832 kB]
Get:4 http://us.archive.ubuntu.com/ubuntu/ trusty/main nvidia-prime amd64 0.6.2 [11.2 kB]
Get:5 http://us.archive.ubuntu.com/ubuntu/ trusty/main nvidia-settings amd64 331.20-0ubuntu8 [774 kB]
Fetched 65.7 MB in 34s (1,883 kB/s)                                            
Selecting previously unselected package nvidia-346.
(Reading database ... 194726 files and directories currently installed.)
Preparing to unpack .../nvidia-346_346.82-0ubuntu0.2_amd64.deb ...
Unpacking nvidia-346 (346.82-0ubuntu0.2) ...
Selecting previously unselected package nvidia-libopencl1-346.
Preparing to unpack .../nvidia-libopencl1-346_346.82-0ubuntu0.2_amd64.deb ...
Unpacking nvidia-libopencl1-346 (346.82-0ubuntu0.2) ...
Selecting previously unselected package nvidia-opencl-icd-346.
Preparing to unpack .../nvidia-opencl-icd-346_346.82-0ubuntu0.2_amd64.deb ...
Unpacking nvidia-opencl-icd-346 (346.82-0ubuntu0.2) ...
Selecting previously unselected package nvidia-prime.
Preparing to unpack .../nvidia-prime_0.6.2_amd64.deb ...
Unpacking nvidia-prime (0.6.2) ...
Selecting previously unselected package nvidia-settings.
Preparing to unpack .../nvidia-settings_331.20-0ubuntu8_amd64.deb ...
Unpacking nvidia-settings (331.20-0ubuntu8) ...
Processing triggers for ureadahead (0.100.0-16) ...
ureadahead will be reprofiled on next reboot
Processing triggers for man-db (2.6.7.1-1ubuntu1) ...
Processing triggers for gnome-menus (3.10.1-0ubuntu2) ...
Processing triggers for desktop-file-utils (0.22-1ubuntu1) ...
Processing triggers for bamfdaemon (0.5.1+14.04.20140409-0ubuntu1) ...
Rebuilding /usr/share/applications/bamf-2.index...
Processing triggers for mime-support (3.54ubuntu1.1) ...
Setting up nvidia-346 (346.82-0ubuntu0.2) ...
update-alternatives: using /usr/lib/nvidia-346/ld.so.conf to provide /etc/ld.so.conf.d/x86_64-linux-gnu_GL.conf (x86_64-linux-gnu_gl_conf) in auto mode
update-alternatives: using /usr/lib/nvidia-346/alt_ld.so.conf to provide /etc/ld.so.conf.d/i386-linux-gnu_GL.conf (i386-linux-gnu_gl_conf) in auto mode
update-alternatives: using /usr/share/nvidia-346/glamor.conf to provide /usr/share/X11/xorg.conf.d/glamoregl.conf (glamor_conf) in auto mode
update-initramfs: deferring update (trigger activated)
INFO:Enable nvidia-346
DEBUG:Parsing /usr/share/ubuntu-drivers-common/quirks/lenovo_thinkpad
DEBUG:Parsing /usr/share/ubuntu-drivers-common/quirks/put_your_quirks_here
DEBUG:Parsing /usr/share/ubuntu-drivers-common/quirks/dell_latitude
Adding system user `nvidia-persistenced' (UID 117) ...
Adding new group `nvidia-persistenced' (GID 126) ...
Adding new user `nvidia-persistenced' (UID 117) with group `nvidia-persistenced' ...
Not creating home directory `/'.
Loading new nvidia-346-346.82 DKMS files...
First Installation: checking all kernels...
Building only for 3.19.0-25-generic
Building for architecture x86_64
Building initial module for 3.19.0-25-generic
Done.

nvidia_346:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/3.19.0-25-generic/updates/dkms/

nvidia_346_uvm.ko:
Running module version sanity check.
 - Original module
   - No original module exists within this kernel
 - Installation
   - Installing to /lib/modules/3.19.0-25-generic/updates/dkms/

depmod.......

DKMS: install completed.
Setting up nvidia-libopencl1-346 (346.82-0ubuntu0.2) ...
Setting up nvidia-opencl-icd-346 (346.82-0ubuntu0.2) ...
Setting up nvidia-prime (0.6.2) ...
nvidia-prime stop/waiting
Setting up nvidia-settings (331.20-0ubuntu8) ...
Processing triggers for initramfs-tools (0.103ubuntu4.2) ...
update-initramfs: Generating /boot/initrd.img-3.19.0-25-generic
Processing triggers for libc-bin (2.19-0ubuntu6.6) ...
Processing triggers for ureadahead (0.100.0-16) ...