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Title says it all.

I did sudo apt-get upgrade and sudo apt-get autoremove and all that stuff, but System Settings still won't open.

I tried opening it from a Terminal, and it returned Bus error (core dumped)

Any help would be appreciated!

Zencha
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    ubuntu20; I just do a sudo apt-get install unity-control-center. I don't know why it happens from time to time – Igor Manoel Sep 29 '20 at 13:50

4 Answers4

77

Try this,

sudo apt-get remove unity-control-center
sudo apt autoremove
sudo apt-get install unity-control-center

It worked for me.

54

And if you are trying to do this with Ubuntu 18.04, try this:

sudo apt-get remove gnome-control-center
sudo apt autoremove
sudo apt-get install gnome-control-center

This is because Ubuntu decided to switch their user interface from Unity to Gnome.

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    How is it a dupe of the answer above?? – doug Jul 28 '18 at 16:22
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    Ubuntu decided to switch from unity (the first person said "unity-control-center") to gnome ("gnome-control-center"). The commands are very similar, however Kemin asked how for Ubuntu 18. – Jake Malis Jul 29 '18 at 17:06
  • Jake - someone commented that your post was a dupe, I questioned that & they removed their comment which gives mine no context. Probably I should just remove mine now that I see comments can be removed.. – doug Jul 29 '18 at 20:23
  • yes this worked for 18.04 that have running on VMWare. but why suddenly it stopped showing? – Simple Fellow Aug 05 '19 at 12:06
  • This is working totally fine. Thank you very much you saved my day. I was thinking to reinstall Ubuntu in my machine. – K Rajitha Oct 26 '19 at 16:11
2

I had a similar issue in Ubuntu 20.04 and I run the following command,

dconf reset -f /org/gnome/control-center/

Note: If this works for you, that's great!!! Honestly, I don't know what does it do in behind the scenes.

JPG
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1

With NVIDIA graphics I had to install proprietary nvidia-driver-430.40

I added repositories:

sudo add-apt-repository ppa:graphics-drivers/ppa
sudo add-apt-repository ppa:oibaf/graphics-drivers

and ran

sudo ubuntu-drivers autoinstall 

and reboot

The problem was solved.

If does not work for you. To remove the PPAs run:

sudo ppa-purge ppa:graphics-drivers/ppa
sudo ppa-purge ppa:oibaf/graphics-drivers
Vijay
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  • this was my problem. i just had an "unknown display" which the settings was opening on. i eventually realized and was able to drag it in. then to get rid of that "unknown display" you can either update drivers to the recommended with sudo ubuntu-drivers autoinstall or manually switch to a propriety driver in Additional Drivers, which the autoinstall did to "(propriety, tested)". – Puddle Mar 14 '20 at 18:47
  • Installing the latest nvidia-driver-* solved my issue, but only after a reboot. It would be nice to add that to your answer. – Eric Fossum Nov 22 '21 at 19:30
  • @Eric Fossum thanks. Added reboot.as suggted. – Vijay Nov 23 '21 at 21:35