https://bugzilla.kernel.org/show_bug.cgi?id=215797
Bug ID: 215797
Summary: Lenovo IdeaPad won't resume from suspend while plugged
into AC adapter
Product: ACPI
Version: 2.5
Kernel Version: 5.17.1
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Power-Processor
Assignee: acpi_power-proces...@kernel-bugs.osdl.org
Reporter: tswee...@protonmail.com
Regression: Yes
I am experiencing this bug on a Lenovo IdeaPad S340 with an AMD Ryzen 7 3700U,
running Arch.
Upon pressing the power button to wake the system (while plugged into power; on
battery it seems fine), the keyboard lights up and the caps lock key blinks,
nothing is displayed on the screen and the system must be forcibly powered off.
Nothing is logged to system journal (at least, that can be seen from the next
boot)
Bisecting the kernel tree (between 5.16.16 and 5.17.1) has revealed the
following commit as apparently the first bad one:
```
[87ebbb8c612b1214f227ebb8f25442c6d163e802] ACPI: processor: idle: Only flush
cache on entering C3
```
I believe this is likely distinct from
https://bugzilla.kernel.org/show_bug.cgi?id=215768 since it still occurred with
Always On USB disabled, and this is an issue with failing at resuming from
suspend, not suspending in the first place.
I originally suspected https://bugzilla.kernel.org/show_bug.cgi?id=215742 but I
now think it is probably distinct from that bug since I identified the ACPI
commit above as the first bad one. This laptop does have an nvme drive,
however, so it isn't 100% ruled out.
Relevant downstream bug report (Arch) with other users experiencing this (and
potentially related) issues: https://bugs.archlinux.org/task/74285
If needed, let me know about other ways to try to collect data about the error
and I can try to do so.
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