Firmware Test Suite

[FEAT] Check _PLD are not present for unusable USB ports

Bug #2055855 reported by Paul Menzel on 2024-03-04

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	Firmware Test Suite	Fix Released	High	Ivan Hu

Bug Description

From [1]:

> Unused USB ports may have bogus location data in ACPI PLD tables.
> This causes port peering failures as these unused USB2 and USB3 ports
> location may match.

Next Dell systems more systems seem to be affected.

[1]: https://<email address hidden>/T/#m4cf960a6e87b5665d062f2332337b3fcf4e8a6e9
[2]: https://<email address hidden>/T/#md95dba70b6b16047cb319d24a61f4413c13838df

Revision history for this message

Ivan Hu (ivan.hu) wrote on 2024-03-13:

Thanks for reporting this.

Could you help to attach the acpidump file which can help to investigate and verify the issue?
please refer to, https://wiki.ubuntu.com/FirmwareTestSuite/FirmwareTestSuiteReportBug

Revision history for this message

Paul Menzel (paulmenzel) wrote on 2024-03-13:

Output of `acpidump` with system firmware 1.21.0 Edit (1.0 MiB, text/plain)

The output of `acpidump` of some of the affected systems are attached to the Linux Kernel Bugzilla reports.

1. Linux warning `usb: port power management may be unreliable` on Dell
OptiPlex 3620
https://bugzilla.kernel.org/show_bug.cgi?id=218486

2. Linux warning `usb: port power management may be unreliable` on Dell
OptiPlex 5055
https://bugzilla.kernel.org/show_bug.cgi?id=218487

3. Linux warning `usb: port power management may be unreliable` on
OptiPlex Small Form Factor Plus 7010
https://bugzilla.kernel.org/show_bug.cgi?id=218488

4. Linux warning `usb: port power management may be unreliable` on Dell
PowerEdge T440
https://bugzilla.kernel.org/show_bug.cgi?id=218490

I attach one example for the Dell XPS 13 9360.

PS: Out of curiosity, as this bug is quite common, what system do you use?

Revision history for this message

Ivan Hu (ivan.hu) wrote on 2024-03-15:

patch sent to fwts-devel,

https://lists.ubuntu.com/archives/fwts-devel/2024-March/013842.html