03-26-2017 10:20 PM
I am having boot up warning with the current Bios that is recently updated in February 2017. This machine dual boots with Windows 10 and Ubuntu 16.04.2. I am facing error and warning message from the Bios which can only be fixed by Lenovo Inc. Please review the bug and error messages below.
The bug is as follows:
[ 0.000000] ACPI BIOS Warning (bug): 32/64X length mismatch in FADT/Pm1aControlBlock: 16/32 (20150930/tbfadt-623)
[ 0.000000] ACPI BIOS Warning (bug): Invalid length for FADT/Pm1aControlBlock: 32, using default 16 (20150930/tbfadt-704)
The ACPI error is as follows:
[ 1.978280] ACPI Error: Field [TBF3] at 294912 exceeds Buffer [NULL] size 262144 (bits) (20150930/dsopcode-236)
[ 1.978287] ACPI Error: Method parse/execution failed [\_SB.PCI0.VID.GETB] (Node ffff8801570b1960), AE_AML_BUFFER_LIMIT (20150930/psparse-542)
[ 1.978296] ACPI Error: Method parse/execution failed [\_SB.PCI0.VID.ATRM] (Node ffff8801570b1938), AE_AML_BUFFER_LIMIT (20150930/psparse-542)
[ 1.978304] failed to evaluate ATRM got AE_AML_BUFFER_LIMIT
I am not certain if it affects the normal shut down. Even though i can use magic sysrq key to shutdown safely, it is a hassle to do so.
Thank you for your kind assistance in issuing new update to the Bios for T400.