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Apr
30
awarded  Critic
Nov
16
comment Can you recommend a very quiet or silent laptop that will work well with Ubuntu?
I think any quality (non-gaming) laptop would be decently silent. Then you could start picking those that interact well with Ubuntu. I can at least speak for Thinkpads which satisfy both requirements.
Oct
17
awarded  Supporter
Oct
15
awarded  Teacher
Oct
15
answered How to improve performances
Oct
15
comment How to improve performances
It would be my first guess as the changes shouldn't be as dramatic as you described. If you still have kernel 2.6 installed (it should then still be on the GRUB menu), you may try booting into that to see if its any better.
Oct
15
comment How to improve performances
As for CPU usage, Ubuntu 11.04 shipped with kernel 2.6 while Ubuntu 11.10 comes with kernel 3.0. Your problems with CPU may possibly be due to that. Try googling your processor name for any bugs with Ubuntu 11.10. P.S. It's probably not your case but, as an example, Sandy Bridge processors have some power issues with most recent kernels.
Oct
15
comment Why I do not have Gnome Shell with Gnome 3?
Gnome Shell is a component of Gnome 3 and Ubuntu does not have it by default as they decided to stick with Unity interface (under Gnome 3), i.e. a dashboard at the left and a global menu. If you are happy with Unity, you don't need Gnome Shell. It's a personal choice. If you want Gnome Shell, just install it yourself as suggested. Visually, it would modify the way your desktop is managed and how you access applications and switch between them.