From: bugzilla-daemon@kernel.org
To: platform-driver-x86@vger.kernel.org
Subject: [Bug 216347] New: ACPI power profile keeps switching to "low-power" on ThinkPad T14 Gen1 (AMD)
Date: Wed, 10 Aug 2022 09:08:22 +0000 [thread overview]
Message-ID: <bug-216347-215701@https.bugzilla.kernel.org/> (raw)
https://bugzilla.kernel.org/show_bug.cgi?id=216347
Bug ID: 216347
Summary: ACPI power profile keeps switching to "low-power" on
ThinkPad T14 Gen1 (AMD)
Product: Drivers
Version: 2.5
Kernel Version: 5.19
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Platform_x86
Assignee: drivers_platform_x86@kernel-bugs.osdl.org
Reporter: madcatx@atlas.cz
Regression: No
Hi,
I recently discovered this annoying behavior. I use an udev script to toggle
between "low-power" and "performance" ACPI power profiles based on whether the
laptop is plugged into a wall. By cat'ing "/sys/firmware/acpi/platform_profile"
I observe the power profile always dropping to "low-power" a few seconds after
I manually change it to something else.
The machine has a 4750U Ryzen chip and the latest 1.41 firmware (DMI: LENOVO
20UDS02D00/20UDS02D00, BIOS R1BET72W(1.41 )). I run the latest 5.19 kernel.
I tried to toggle between S3 and S2idle sleep modes but that doesn't seem to
make any difference.
Is there anything I can do to help track this down?
Thanks!
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next reply other threads:[~2022-08-10 9:08 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-10 9:08 bugzilla-daemon [this message]
2022-08-10 14:41 ` [Bug 216347] ACPI power profile keeps switching to "low-power" on ThinkPad T14 Gen1 (AMD) bugzilla-daemon
2022-08-10 15:02 ` bugzilla-daemon
2022-08-10 15:06 ` bugzilla-daemon
2022-08-11 8:41 ` bugzilla-daemon
2022-08-11 12:19 ` bugzilla-daemon
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