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I am using Ubuntu 11.10 and used Jupiter for Betty performance. I have selected "Video displays" to External display only with my Account. My display gone just a black screen.

How can I recover my display?

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Do you have nVidia? Then have a look at this for starters, it is about updating the video drivers. – Sun Dial May 9 '12 at 16:04
as I told I am new user of ubantu, can you please tell me how can i remove jupiter from my guest account or some other solution? – Raza Hussain May 9 '12 at 16:12

Just went through this. For those finding this thread now: At login screen, ctrl+alt+f1 (Brings up terminal mode) Login using username/password

sudo rm -r /var/jupiter/

Then alt+F7 to return to login screen.

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Press Ctrl+Alt+F1 and login to your account. Use the command sudo apt-get remove jupiter and reboot your computer with sudo reboot.

Your screens should be back to default.

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No it is not listed in softwares. with my Guest account – Raza Hussain May 9 '12 at 16:41
guest-expVVx@raza-Aspire-5749:~$ sudo su sudo: unable to change to sudoers gid: Operation not permitted guest-expVVx@raza-Aspire-5749:~$ – Raza Hussain May 9 '12 at 16:43
As i posted the commads in last comment .. I am unable to run sudo command in my guest account. – Raza Hussain May 9 '12 at 16:46
Can you recall what method you used to install Jupiter in the first instance?? – Sun Dial May 9 '12 at 22:35
thanks Sun Dial... I have removed the Jupiter and then install. Now its working fine. – Raza Hussain May 10 '12 at 19:20

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