Petr, thank you for your comment. Unfortunately, as you are not the original reporter, this problem is not about your hardware, or a virtual machine, so your results wouldn't apply here. Despite this, if you have a screen freeze issue in Ubuntu, please feel free to file a new report by executing the following in a terminal: ubuntu-bug xorg
For more on this, please see the official Ubuntu documentation: Ubuntu X.Org Team, Ubuntu Bug Control, and Ubuntu Bug Squad: https://wiki.ubuntu.com/Bugs/BestPractices#X.2BAC8-Reporting.Focus_on_One_Issue Ubuntu Community: https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette When opening up the new report, please feel free to subscribe me to it. Please note, not filing a new report will delay your problem being addressed as quickly as possible. Thank you for your understanding. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1184451 Title: Ubuntu 13.10 random screen freeze while Normal OS activites To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1184451/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs