https://bugzilla.kernel.org/show_bug.cgi?id=104791
Bug ID: 104791
Summary: ACPI errors on Lenovo C50-30 (AE_AML_INFINITE_LOOP,
argument type mismatch)
Product: ACPI
Version: 2.5
Kernel Version: 4.1.6
Hardware: All
OS: Linux
Tree: Fedora
Status: NEW
Severity: normal
Priority: P1
Component: ACPICA-Core
Assignee: [email protected]
Reporter: [email protected]
Regression: No
Created attachment 187991
--> https://bugzilla.kernel.org/attachment.cgi?id=187991&action=edit
acpidump output
I'm seeing a handful of occasional ACPI errors on a Lenovo C50-30. Currently
using kernel 4.1.6-201.fc22.x86_64, but they've always been there to my
knowledge
[ 1.154595] ACPI Warning: \_SB_.PCI0.GFX0._DSM: Argument #4 type mismatch -
Found [Buffer], ACPI requires [Package] (20150410/nsarguments-95)
[ 1.154710] ACPI Warning: \_SB_.PCI0.RP05.PEGN._DSM: Argument #4 type
mismatch - Found [Buffer], ACPI requires [Package] (20150410/nsarguments-95)
[ 1.155068] ACPI Warning: \_SB_.PCI0.RP05.PEGN._DSM: Argument #4 type
mismatch - Found [Buffer], ACPI requires [Package] (20150410/nsarguments-95)
[ 1.167601] ACPI Exception: AE_NOT_FOUND, Evaluating _DOD
(20150410/video-1290)
[ 6.721508] ACPI Warning: \_SB_.PCI0.RP05.PEGN._DSM: Argument #4 type
mismatch - Found [Buffer], ACPI requires [Package] (20150410/nsarguments-95)
[ 7.284445] ACPI Error: Method parse/execution failed
[\_SB_.PCI0.RP05.PEGN.NVOP] (Node ffff8802260a7be0), AE_AML_INFINITE_LOOP
(20150410/psparse-536)
[ 7.284455] ACPI Error: Method parse/execution failed
[\_SB_.PCI0.RP05.PEGN._DSM] (Node ffff8802260a7d98), AE_AML_INFINITE_LOOP
(20150410/psparse-536)
[ 7.284463] ACPI: \_SB_.PCI0.RP05.PEGN: failed to evaluate _DSM (0x3021)
[ 7.284465] ACPI: \_SB_.PCI0.RP05.PEGN: failed to evaluate _DSM
Full dmesg and acpidump attached. I think PCI0.RP05 is something to do with the
Nvidia chip in an Optimus set-up. I'm not using this GPU. I've not encountered
any stuck kapcid or other functional problems, but would appreciate knowing
whether this is a Linux bug or a broken BIOS that needs reporting.
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