https://bugzilla.kernel.org/show_bug.cgi?id=209931
Bug ID: 209931
Summary: Dell XPS 13 9310: Power Resource [PIN] results in 260
ms delay
Product: ACPI
Version: 2.5
Kernel Version: 5.10-rc1
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: ACPICA-Core
Assignee: acpi_acpica-c...@kernel-bugs.osdl.org
Reporter: pmenzel+bugzilla.kernel....@molgen.mpg.de
Regression: No
Created attachment 293287
--> https://bugzilla.kernel.org/attachment.cgi?id=293287&action=edit
Output of `acpidump`
Looking at the boottime of the Dell XPS 13 9310 with Ubuntu 20.04 (and 20.10)
the Linux kernel takes *four* seconds until it loads the init program
(systemd).
260 ms seem to be spent to figure out that the power resource PIN, whatever
that is, is off.
```
[ 0.000000] Linux version 5.10.0-rc1+ (helmut@helmut-XPS-13-9310) (gcc
(Ubuntu 10.2.0-13ubuntu1) 10.2.0, GNU ld (GNU Binutils for Ubuntu) 2.35.1) #2
SMP Tue Oct 27 14:58:21 CET 2020
[…]
[ 0.257267] ACPI: Enabled 8 GPEs in block 00 to 7F
[ 0.263619] ACPI: Power Resource [BTPR] (on)
[ 0.278865] ACPI: Power Resource [V0PR] (on)
[ 0.279049] ACPI: Power Resource [V1PR] (on)
[ 0.279230] ACPI: Power Resource [V2PR] (on)
[ 0.285237] ACPI: Power Resource [WRST] (on)
[ 0.298118] ACPI: Power Resource [TBT0] (on)
[ 0.298169] ACPI: Power Resource [TBT1] (on)
[ 0.298217] ACPI: Power Resource [D3C] (on)
[ 0.558918] ACPI: Power Resource [PIN] (off)
[ 0.559413] ACPI: PCI Root Bridge [PC00] (domain 0000 [bus 00-fe])
[ 0.559419] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM
Segments MSI HPX-Type3]
[…]
```
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