Installing Ubuntu 15.10 on HP PC with Nvidia GTX 750 Ti

I have been struggling to install Ubuntu on my HP desktop PC for a while. The specs of my system are: HP 500-314 PC with Nvidia GTX 750 Ti.

My intention was to install Ubuntu side-by-side with Windows, but without adding a bootloader to the Windows partition. So I wanted to install Ubuntu on a separate HDD and choose the second HDD from the BIOS boot options.

My attempts to install Ubuntu using version 14.04 or 15.04 were not successful because after installation the video driver was not loading correctly. I found out later that this was due to my Nvidia video card.

Ubuntu 15.10 has solved this problem to some extent, such that now at least the login screen is shown correctly and you can login and launch Ubuntu. There are still some corruptions of the screen, but it is workable.

To fix the screen corruption, the Nvidia driver needs to be installed. The following commands needs to be executed to install the Nvidia driver from the external repository. I have installed the version 352 driver as that works fine with my GTX 750 Ti.

sudo add-apt-repository ppa:graphics-drivers/ppa

sudo apt-get update

sudo apt-get install nvidia-352 nvidia-settings

Fix for performance issue when upgrading Sony Vaio from Windows 8.1 to Windows 10

I recently upgraded my Sony Vaio E series laptop from Windows 8.1 to Windows 10. The upgrade went smooth, but Windows 10 was constantly causing disk activity, there by reducing the performance of the laptop.

On investigation it turned out that the Vaio utilities like Vaio Care etc.. were not working correctly on Windows 10 and were constantly accessing the disk. I uninstalled Vaio Care and then the performance issue was gone, the laptop started running smoothly again, the way it ran under Windows 8.1.

I eventually ended up resetting the laptop and restoring it to plain Windows 10. This gives the best performance on my Vaio.