Christian, this is a kernel bug. You should use the kernel parameter: "intel_idle.max_cstate=1", or downgrade to the 14.04 LTS Release, or just downgrade the kernel. I use ubuntu kernel 3.13.0-24, and it doesn't freeze.
If you choose the first option, do these steps: 1. sudo nano /etc/default/grub 2. There is a line in that: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" (like this), replace with: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash intel_idle.max_cstate=1" Save it (CTRL+O) 3. sudo update-grub 4. sudo reboot Your CPU will be a little warmer. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1509723 Title: [Acer Aspire ES1-311] Ubuntu freezes occasionally To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1509723/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
