I upgraded recently from 13.04 to 13.10. I have Dell Inspiron 4GB RAM, Intel Core i3. Login takes a lot of time and all the graphics are very slow. Alt + Tab takes a lot of time (seconds).

  • After reading some threads, I also removed Cinnamon desktop, but it didn't change anything.
  • Tried running in FailSafeX mode, but still the performance is poor.

I had to ultimately fall back to Gnome Flashback (no effects). Gnome flashback works fine without any issues.

Can anyone please help me get back to Unity, else I will have a very hard time running using Gnome.


Here is my /var/log/dmesg and /var/log/Xorg.0.log


I would start by looking at the dmesg and xorg.0.log logs (in /var/log/). I found that the new video drivers required a BIOS upgrade. The logs should give you a clue where to begin. Add them to you question for a better answer.

  • btw I hope you know that I am not on UEFI. I am on Grub2. – Juzer Ali Oct 25 '13 at 11:27


dconf write /org/compiz/profiles/unity/plugins/opengl/texture-filter 0
dconf write /org/compiz/profiles/unity/plugins/unityshell/dash-blur-experimental 0

Or through GUI, ccsm:

  • OpenGL → Change Texture Filter from Good to Fast
  • Ubuntu Unity plugin → General → Dash Blur from Active Blur to No Blur

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