>From the error messages itself, it seems that BIOS did not perform
boundary check when it tries to refer to a memory address. As a result,
Field [TBF3] is out-of-boundary. The disassemabled code is as below:
OperationRegion (ATRP, SystemMemory, \ATRB, 0x00010000)
Field (ATRP, AnyAcc, Lock, Preserve)
{
IDX0, 262144,
IDX1, 262144
}
Method (_ROM, 2, Serialized) // _ROM: Read-Only Memory
{
If (LGreaterEqual (Arg0, 0x8000))
{
Return (GETB (Subtract (Arg0, 0x8000), Arg1, IDX1))
}
If (LGreater (Add (Arg0, Arg1), 0x8000))
{
Subtract (0x8000, Arg0, Local0)
Subtract (Arg1, Local0, Local1)
Store (GETB (Arg0, Local0, IDX0), Local3)
Store (GETB (0x00, Local1, IDX1), Local4)
Concatenate (Local3, Local4, Local5)
Return (Local5)
}
Return (GETB (Arg0, Arg1, IDX0))
}
Method (GETB, 3, Serialized)
{
Multiply (Arg0, 0x08, Local0)
Multiply (Arg1, 0x08, Local1)
CreateField (Arg2, Local0, Local1, TBF3)
Return (TBF3)
}
As I am not able to do a BIOS update (I have the system but not its
battery that is required for BIOS update), I am not able to confirm
whether new BIOS fixes this problem.
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https://bugs.launchpad.net/bugs/1364748
Title:
[Lenovo ThinkPad T440p][10de:1290] switching nvidia graphic card
raises fwts high failure
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