Unfinished and Crude

Saturday, 25 May 2013

Dual Boot for Ubuntu 13.04 Dell XPS 15

Procedure to dual boot Dell XPS 15

Original install Windows 7.

Open windows 7 turn off Intel rapid storage technology in windows, boot several times to ensure raid type drive not being used.

Used windows disk manager halved partition, to create space for ubuntu.

Booted several times to make sure all OK.

booted to usb stick with Ubuntu 13.04 and installed Ubuntu.

Prior to this had many issues trying to get it to registed existing OS

in BIOS, not actually bios, new thing!!

Turned off intel secure boot and left intel smart reponse technology on.

No boot install of GRUB

booted to ubuntu on usb and used the following to install boot-repair

sudo apt-get-repository ppa:yannubuntu/boot-repair && sudo apt-get update
sudo apt-get install -y boot-repair && (boot-repair &)

Installed grub to all partitions except the solid state drive.

This gave me grub access with windows.

Went back turned on Intel rapid storage technology in windows, booted several times to sort.

Sunday, 9 December 2012

Ubuntu Crash nVidia

Problems with ubuntu installed 12.10 worked for a while then crashed, nothing on screen refused to boot.

Did fresh install from CD worked for a while upgraded drivers for nVidia crashed, needed reinstall. Card GTX 650 TI

found this: from here

After lots of messing around this is the ticket use uname -r to get correct headers

sudo apt-get install linux-headers-3.5.0-18-generic
sudo apt-get remove nvidia-current
sudo apt-get install nvidia-current

Notes: ctrl +alt +F7 returns to gui from command line.(ctrl+alt+F1)

xserver can be stopped with sudo stop lightdm at command, lightdm seems to have replaced gdm in 12.10

Ubuntu lower res unity

~/.xprofile file. If the file doesn't exist, create it.

export UNITY_LOW_GFX_MODE=1

Remove blur transparity etc

Thursday, 6 December 2012

CPL and C++ learning

Working through learning point clouds.

working with openni_view_rgb.cpp

renamed openni_view_mod.cpp

adding in pointer click function to work on events.

pcl — Revision 8190

Wednesday, 5 December 2012

Machine learning

Having a look at machine learning course on you tube.
See hearing aid for link to the first video

Link to course material

Hearing aids?

Thinking of investigating the use of machine learning possibly independant learning algorythum to improve the performance of hearing aids in areas with multiple noise sources.