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I just installed Ubuntu 13.10 on my Dell XPS L502X laptop last night. I set it up as a dual boot with Windows 8.1. I was testing the GUI to make sure all features work.

Examples: Software Updater for the latest updates, tweaking the System settings to my personal taste, setting up wireless network, etc.

The only things I tweaked were uninstalling Thunderbird and removing the mail icon on the system bar, and changed the wireless icon on my laptop from blinking light -> solid light.

I click on the power icon in the upper right corner of the system bar. I scroll down to Guest session to switch user. When I click switch user, my monitor goes black. Nothing happens. Pressing "enter" or any keys on the keyboard does not change or manipulate the screen. The only thing I can do is use the command:

Alt+PrntScr REISUB

It reboots the laptop

Has this happened to anyone?

  • its a known issue of 13.10.. – Sukupa91 Nov 26 '13 at 12:16
  • Make sure that you have the necessary graphics drivers installed. – Seth Dec 3 '13 at 1:31
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    @Sushantp606 Do you have a link to the bug? – Seth Dec 3 '13 at 1:31
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I had the same problem (dell M3800 with optimus graphics) on a clean install of 13.10, but the updates I installed this morning seem to have fixed it. I can now switch users fine either from the "cog" menu or from the lock screen

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