Hello,

since i just installed Kubuntu on my first own Laptop, this is also my first post to the KDE Community.
After a research (before buying the laptop) i choosed Kubuntu as my distro and desktop environment.

I recently bought a new laptop and just installed Kubuntu 16.04 on it.
Unfortunately the performance is so to say disenchanting.

• The startup process takes about 30-40 seconds.
• Opening Programs takes at least 1-2 seconds.
• When opening a program, sometimes a loading bar (same from the login screen) fills the screen, until the progam is opened

I do not think that it is a hardware related thing and even with high settings on the plasma environment everything should run smooth.(?)

Can you recommend anything to check on to get the system faster?

Thank you very much in advance

Hardware: http://pastebin.com/SRe9dFPd
Processes: http://pastebin.com/3u51UHi9
Software: http://pastebin.com/2x8iTvM4
Logs: http://pastebin.com/FCeEzR9b

My old Intel Sandy Bridge laptop from 2011 takes the same amount of time as yours to boot up, roughly 30 seconds or so. And I am using Kubuntu too. So there must be some kind of software related problem (if I remember correctly, there is a fixed amount of time for the boot up process, so it doesn't matter if you have a super computer).

If software is not the problem maybe you bought a faulty computer, check your harddrive. Try to boot the same Kubuntu from a fast USB and see if it boots up in less time. You can also try to disable almost all startup process and visual effects just to check if the required time to boot improves or not.

If you are really worried about this maybe you should just try another distro, I read that some Arch Linux users have a 3 to 5 seconds boot up... but Arch Linux isn't recommended for inexperienced users (I don't know if that's your case or not, just saying...) Keep us informed

Hi lunarparks,

thank you for your response.

The startup time is okay for me.
The more annoying thing is that i bought a new laptop with an SSD an 8gigs of RAM and programs take "long" time to open.

I tried with a live usb, like you recommended, the loading time of programs remain the same.

I also tested the Hard-Drive Speed with hdparm, 490mb/s read, 200mb/s write.

Any more recommendations?

So it looks like the problem isn't related to your hard drive which is good because that means it isn't faulty. Do you have Kubuntu Backports PPA activated? which version of Plasma & KDE Frameworks are you using? (you can check that at KInfoCenter).

If Kubuntu Backports are not being used, you should definitely try them, maybe there's a software problem that is fixed in recent KDE versions. If you are running the latest version... I think you are out of luck. Maybe trying a different compositor setup and disabling some effects and daemons can yield a significant performance improvement.

It could also be a driver bug, do you have a dedicated graphic card? if that is the case try updating its driver... although the integrated Intel card should work just fine. Next month Kubuntu 16.10 will be out, if you don't need LTS support you could always try that version, the kernel and mesa stack will be different so maybe that helps. If you want to check that now you can always download the beta version and use it as a live USB (just keep in mind that it is a development version so bugs are expected - and if you find them it would be very helpful if you have time to report them -)

If some KDE developer reads this, is the fixed amount of time for the boot process still activated?

Thank you again for your answer!

How do i check or enable the backports?
I do not use a dedicated graphics card.
I already tried every compositor setting, still now difference.
At the end of my post, you will find the information from the information center.

Ok so you have the latest (available) KDE software version for Kubuntu, so there's no need to add the Kubuntu Backports PPA at the moment. However, enabling it will prepare your computer to receive more KDE related software updates. In order to do so, just open the terminal (Konsole) and type:

Code: Select all

sudo add-apt-repository ppa:kubuntu-ppa/backports

If that doesn't work you can add the repository graphically, follow this guide from the Kubuntu manual: http://docs.kubuntu.org/docs/repositories.html

After adding the repository do an update, if you're still in the terminal type:

Code: Select all

sudo apt-get update

After that you will see if there are any updates or not and apply them if desired, you can do that via terminal or opening Muon.

I noticed that you are using a low power consumption processor, keep in mind that they aren't that powerful, although it shouldn't matter at all in your case, maybe the driver that is controlling it is causing the problem. If that is the case your only solution is to upgrade the Kernel. But since Kubuntu 16.10 is just behind the corner, I suggest you to wait till the newest version is available and do a fresh install. So backup your files and format your harddrive, then install Kubuntu 16.10.

It's really hard to find what's causing the poor performance, your computer should be quite fast in fact. I may not be able to help you further since I'm not a KDE/Kubuntu developer but have you tried to deactivate Baloo search indexing? If you have a well organised file system you won't need it in most cases so disabling will improve your performance, or, at the very least, free some RAM usage.

PD: You can always try to fill a bug and hope that some developer tries to acknowledge what's happening in your case.