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Log Out problem after upgrading from 13.04 to 13.10

rated 0 times [ -1] [ 0] / answers: 1 / hits: 584 / 3 Years ago, wed, july 28, 2021, 9:12:40

After I've upgraded from Ubuntu 13.04 to 13.10, I can no longer use the Session Indicator "Log Out..." menu.

As soon as I click on it, the screen goes blank with no mouse or keyboard input, so I cannot do anything other then pressing and holding the power button down to force the computer to shut down.

The same also happens if I enter the Terminal command sudo service lightdm restart.

I can switch to Guest Session but then I have the same problem again when I switch back to my user session, the only difference: the screen is not black but simply my regular desktop screen is frozen.

Any ideas that can help me out will be much appreciated.

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bjecterless

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3 Years ago

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answered 3 Years ago puccop · Accepted Answer

Thanks to the tip implied in Sandeep's answer ("I don't know exactly how it got solved ... I think this is due to graphics problem, may be some driver is missing") I've solved the problem myself, and would like to write it down in case it might be helpful for others experiencing a similar problem:

It seems the problem was in deed associated with a graphics driver issue.

I have an AMD/Intel Hybrid graphics card, but I didn't have such a problem before when I first started using it without installing any AMD graphics driver from either Ubuntu repositories or AMD website.

After installing the AMD graphics driver as explained here the problem has disappeared.