I have almost identical system with NuageBleu describing in post #431 and I got hard freezes with no other way than hard shutdown/reset.
I also use JetBrains software, Chrome and playing music when freeze happens. My system: Ubuntu 12.04 64bit (all updates installed) Desktop computer specifications: i7-3770K Intel HD 4000 (CPU with GPU, no discrete graphics) 16GB ram SSD No other OS installed. It might be the problem with Intel HD 4000 graphics. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/993187 Title: ubuntu 12.04 completely freezes frequently. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/993187/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp