Could you try this: As root create empty file "pcie_aspm" with execute bit disabled in /etc/pm/power.d folder.
This will prevent the PCIE lanes from entering into power-saving mode which is implemented in the kernel but probably not fully tested. It helped me - see bug #660746. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/662998 Title: System freezes when running on battery -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
