This bug is fixed upstream in kernel 2.6.35.8. From the changelog:commit cc64346cc6b102a93ae8f2cc021de152d122fd43Author: Len BrownDate: Tue Sep 28 22:57:02 2010 -0400 ACPI: invoke DSDT corruption workaround on all Toshiba Satellite commit 100cf87788c0e9104f6fb1b0ff5f72f73fbbbea3 upstream. Our list of Toshiba Satellite models that require this workaround is growing -- so invoke the workaround for the entire product line. https://bugzilla.kernel.org/show_bug.cgi?id=14679 Signed-off-by: Len Brown Signed-off-by: Greg Kroah-HartmanA PPA of this kernel is available at http://kernel.ubuntu.com/~kernel-ppa/mainline/