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Ubuntu 11.04 choppy or slow

I was having this issue when I first upgraded to 11.04 from 10.10 yesterday. It was really odd, cause I was only running Chrome and Netbeans - didn't make much sense.

Anyways, I eventually figured out that it was something to do with OpenGL (with some help from others).

Here are the steps I took to improve the performance:

  1. Install CompizConfig Settings Manager from either the Software Center, or Synaptic.
  2. Click on the Composite tab, and un-check Detect refresh rate.
  3. Back to main menu.
  4. Click on the OpenGL tab.
  5. Uncheck Sync to Vblank.

This should fix the choppy or slow issue significantly, if not completely. Although, if you have a very slow computer, that won't entirely fix it.

jon | April 29, 2011 | Comments (37)


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Comment by The ability to be able and work from home with this business model and make great money put it in th - January 20, 2015 @ 12:11 pm
Comment by Whoa! This blog looks just like my old one! It's on a entirely different topic but it has pretty mu - January 20, 2015 @ 5:38 am
Worked beautifully! I thought it was my slow computer. Thanks so much for posting this!
Comment by Erik - June 25, 2012 @ 9:12 pm
works also on geforce 9500GT!!
great job mate,thnx..
Comment by cello - March 13, 2012 @ 2:04 am
Hate to bump an old thread but.... this should be default. Brilliant.
Comment by Jason - February 08, 2012 @ 9:33 pm
Great Help! Thanks!
Comment by Francisco - January 27, 2012 @ 5:46 am

This helped my system performance a lot! :-)
Comment by Chris - January 11, 2012 @ 11:37 am
Thanks a lot buddy , you solved my problem with video lag
Comment by noba - January 02, 2012 @ 2:54 pm
This also corrected the same problem for me for GeForce 8400M GS. Thanks!
Comment by John - October 25, 2011 @ 11:42 am
Thanks i was thinking of again installing the previous version.Now it works
Comment by sudeep - October 13, 2011 @ 12:10 am
For you who are having problems installing the compizconfig, open the terminal (ctrl + alt + T) and write

sudo apt-get install compizconfig-settings-manager

When done, type


and you will be able to continue at step 2!
Comment by Joe - October 10, 2011 @ 3:29 pm
Thanks it's working! It was better because this computer was runnig gta4 fine!
Comment by Nickson5 - October 05, 2011 @ 8:11 pm
For anyone who stumbles upon the same problem shared by cobra and myself:

Download the software through Synaptic; Synaptic will alert you that a secondary file is necessary to install.

I installed both files simultaneously and quickly.
Comment by Nick - September 28, 2011 @ 6:13 am
I am having the same problem reported by cobras.
Comment by Nick - September 27, 2011 @ 10:48 pm
Thanks a million!
Comment by Joe - August 10, 2011 @ 4:38 pm
I'm having trouble installing Compiz. The Software Center has the following complaint:

"Package dependencies cannot be resolved"

with the following details:

"The following packages have unmet dependencies:


I've tried installing Simple Compiz, bit I runt into the exact same roadblock. No luck with Synaptic, either.

Any suggestions?
Comment by cobras - July 16, 2011 @ 2:59 pm
@jondeveloper Thanks for the hint on Ubuntu 11.04 slowdown. I've installed Compiz and made the changes. I hope this also resolves my issues.
Comment by David Ing - July 13, 2011 @ 10:45 am
Thanks I think that this really works. I have been trying to correct the choppy and slowness for a while.
Comment by marcello - June 19, 2011 @ 2:40 pm
Worked like charm, now i can stop blaming my hd4870 and ati.
Comment by nitra - June 18, 2011 @ 9:02 pm
thanx!!! really solve my problem... :)
Comment by al - June 15, 2011 @ 8:40 am
Thanks for this post. I have a relatively fast pc, but I could feel the choppiness. Now it is sensibly faster. I wonder how you figured it out. I was trying to fix it since the upgrade, but to no avail. Thanks a lot.
Comment by casper - June 08, 2011 @ 11:10 am
worked perfect. thanks
Comment by dmolina007 - June 02, 2011 @ 10:51 am
thanks... but whyy??
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Comment by Bluent - May 18, 2011 @ 2:15 am
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Comment by yash - May 12, 2011 @ 5:47 am
Thanks! for sharing with us
Comment by online software - May 12, 2011 @ 5:45 am
Thanks for the find. Very succinct and very helpful.
Comment by st - May 10, 2011 @ 10:34 pm
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Comment by Alexandra - May 06, 2011 @ 5:06 pm

Brilliant, thanks a lot!
Comment by erwan - May 06, 2011 @ 12:04 pm
That was cool and worked!!! Thanks
Comment by Mani Kiran - May 04, 2011 @ 3:00 am
you're an amazing person
Comment by itchTHEscratch - May 03, 2011 @ 11:08 pm
Thank you very much. Everything is again as fast like ubuntu 10.10
Comment by Viljar - May 03, 2011 @ 8:31 am
thank you very many
Comment by ari - May 02, 2011 @ 12:40 pm
That solved my problem. Thank you.
Comment by db - May 01, 2011 @ 10:55 pm
This worked really good, thanks for the help!
Comment by Martijn - May 01, 2011 @ 9:33 am
worked like a charm thanks
Comment by ben - April 30, 2011 @ 8:25 pm

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