I can confirm 4.8.0 rc1 works great with noapic/nolapic and "acpi_force_32bit_fadt_addr". Without the last parameter it uses 64-bit FADT adress and the problem occurs.
Interestingly, mainline kernels 4.3.6, 4.2.8 and 4.1.29 seem not to honor the parameter and use 64-bit adress no matter what. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1590154 Title: System slow unless using touchpad To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1590154/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
