Same problem exists on thinkpad t431s.
$ uname -a Linux urquell 3.8.0-25-generic #37-Ubuntu SMP Thu Jun 6 20:47:07 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
Attached result of acpidump. Note that when doing the dump this printed on STDERR:
Wrong checksum for FADT!
Same problem exists on thinkpad t431s.
$ uname -a
Linux urquell 3.8.0-25-generic #37-Ubuntu SMP Thu Jun 6 20:47:07 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
Attached result of acpidump. Note that when doing the dump this printed on STDERR:
Wrong checksum for FADT!