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I am using ubuntu 10.04. Over the last couple of days, I am having a weird problem: once the machine gets into screen saver, it is impossible to get it "out".

I do see the mouse cursor move as I move the mouse, but the login popup (with user / password) does not show up and the screen remains "frozen". Any idea what might be going wrong?

For the time being, I have no choice but to restart the computer in order to be able to resume work. Thanks.


migration rejected from Jan 18 '14 at 21:02

This question came from our site for professional and enthusiast programmers. Votes, comments, and answers are locked due to the question being closed here, but it may be eligible for editing and reopening on the site where it originated.

closed as off-topic by Eliah Kagan, Braiam, Seth, Rinzwind, minerz029 Jan 18 '14 at 21:02

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Bug reports and problems specific to development version of Ubuntu should be reported on Launchpad so that developers can see, track and fix these issues." – Eliah Kagan, Braiam, Seth, Rinzwind, minerz029
If this question can be reworded to fit the rules in the help center, please edit the question.

If anyone is continues to experience this problem (and perhaps finds this post by searching), I recommend reporting it as a bug. – Eliah Kagan Jan 17 '14 at 12:22
up vote 5 down vote accepted

My work-around for this bug was to wait a bit without moving my mouse until the pointer disappears. Then press a key from the keyboard to bring up the login window. If that doesn't work, try to change to text console with CTRL-ALT-F1 or F2, login and run killall gnome-screensaver, then return to gnome desktop with CTRL-ALT-F7.

forcefsck -- perfect answer!! I did not know about the tricks of CTRL-ALT-F1 and CTRL-ALT-F7 -- although it appears to me that your solution will work. Thank you. – user11833 Mar 4 '11 at 20:12
Thanks, the first approach worked for me - though I could not see the password dialog. So I had to be careful to press a key just once to break out of the screensaver, then enter the password, then hit Enter. – limist Oct 26 '11 at 1:54
for me, it helped just to go to the text console and then immediately back to GUI that is just pressing CTRL-ALT-F1 and then CTRL-ALT-F7 – lebatsnok Apr 30 '14 at 12:42

In the single user mode in the console login with your user name and password, type this to search for the process:

ps -ef | grep screen

find the process id and kill it by:

kill -1 <process id>

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