I've installed Mandriva 2008.0 (free) and the way I solved it in mandriva was to add acpi_osi=!Linux at kernel boot time I don't know if this will work in ubuntu but you do not loose anything trying except time Good luck Luis
-- toshiba p100 series dsdt acpi error no sound, works with acpi turned off. https://bugs.launchpad.net/bugs/136469 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