Shuhao, regarding hardware giving out, one could test the laptop for this via: http://support.lenovo.com/us/en/products/Laptops-and-netbooks/ThinkPad-T-Series-laptops/ThinkPad-T420?linkTrack=Homepage:Body_Search%20Products
and: https://help.ubuntu.com/community/Checkbox Could you please advise to the results? ** Changed in: linux (Ubuntu) Status: Expired => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1509111 Title: Hard lockup but certain UI elements keeps changing To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1509111/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
