Optimised kernel for 15.04

Tips, Tricks and Tutorials Tried & Tested
#1

I tried Liquorix Kernel on 15.04. It installed very easily (via two deb statements, update and reboot) and resulted in a huge improvement in speed, particularly boot/resume; I was most surprised and encouraged by this.

(My machine is very “Linux-friendly” - Broadwell i3-based, onboard Intel chips for everything, no unusual hardware - but even considering that the installation was smooth).

The only issue is that Liquorix demands up-to-date supporting software (e.g. gcc 4.9 or greater) so I suspect it might not work with 14.04 LTS.

Overall, though, well worth trying (after a backup) and I will be keeping it.

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#2

I followed your tip , but , in my PC , the generic kernel runs better . Strange ,isn’t ? I’m using 15.04 , too , but with Kernel Linux 4.1.6-040106-generic .

#3

I use an optimised Kernel on my Chromebook (one of Hugh Greenburg’s) but just the stock one on my ThinkCentre.

#4

To be honest I expected little improvement - there are a number of projects around which provide “64-bit optimised versions” of Firefox (e.g. Pale Moon x64 or Waterfox) and I have never seen much difference on trying them - and the large improvements were a big surprise …

#5

In fact I just observed that the image ( at VLC , youtube , etc. ) is better . :wink:

#6

I’d like to give it a try although I’m not sure how it would affect my currently installed nvidia drivers package, should I disable it before installing this kernel and re-install it afterwards? I’m used to Arch where the package manager updates nvidia drivers automatically when one installs a new kernel (even some custom made ones), but I think that’s not the case in Ubuntu/Debian.

#7

I got an error on dkms building of the module for my nvidia and a cursorary search shows the typical answer is to use nouveau or get another card. I’m uninstalling now.

#8

I gave the kernel a try on my Chromebook, mostly to see what would happen and was pleasantly surprised to see that it worked just fine there (likely due to Intel video) and I did indeed see the speed improvements mentioned in the earlier portion of the thread. It boots very quickly now, only taking a millisecond or two to complain about something with regard to 219 before completing boot.

#9

I’m still not sure how to install the nvidia drivers with this kernel. Arch has the package nvidia-304xx-lqx, which is the version for my graphics card, is there an ubuntu/debian equivalent?

#10

Okay. Had to reinstall to remove ndiswrapper. This made me try this kernel again to see if I could get it to play ball with me somehow and now I have it working on my Kodi box as well as my Chromebook!

Since I’m not sure which one did the magic I’m recommending both these PPAs.

[xorg-edgers ppa][1]

[Proprietary GPU Drivers ppa][2]

I installed the xorg-edgers ppa first then the proprietary gpu ppa then selected the proprietary drivers in the additional drivers applet. Ubuntu-Mate did its thing and upon reboot everything worked!

Hope this helps someone else.
[1]: https://launchpad.net/~xorg-edgers/+archive/ubuntu/ppa
[2]: https://launchpad.net/~graphics-drivers/+archive/ubuntu/ppa