For me, adding "acpi=off" as a kernel boot option to menu.lst made my second core work. I can't adjust their speeds, but at least both are working.
-- Only one CPU core recognized in Gutsy after updates https://bugs.launchpad.net/bugs/141082 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
