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ACPI: PM: Add quirk for Acer Swift 3 SF314-56G (MX250)

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The Acer Swift 3 SF314-56G (with NVIDIA GeForce MX250) suffers from
the same ACPI power resource regression as the Thunderobot ZERO.
The power resource controlling the dGPU is incorrectly turned off
during initialization, causing the GPU to fall off the bus (D3cold).

This commit adds a DMI quirk to keep the power resource on for this
model, similar to the existing Thunderobot quirk.

Tested on Acer Swift 3 SF314-56G with NVIDIA MX250.

Closes: https://bugzilla.kernel.org/show_bug.cgi?id=221087
Signed-off-by: Matthias Dittrich <dittrich.m@gmx.net>
[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Matthias Dittrich 2026-09-07 09:04:49 +02:00 committed by Rafael J. Wysocki
parent 46767b17fd
commit a003911305
1 changed files with 13 additions and 0 deletions
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13
drivers/acpi/power.c
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@ -1120,6 +1120,19 @@ static const struct dmi_system_id dmi_leave_unused_power_resources_on[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "ZERO"),
}
},
{
/*
* Acer Swift 3 SF314-56G with NVIDIA MX250 suffers from the
* same ACPI power resource regression as the Thunderobot ZERO.
* The power resource controlling the dGPU is incorrectly turned off
* during initialization, causing the GPU to fall off the bus (D3cold).
*/
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
DMI_MATCH(DMI_PRODUCT_NAME, "Swift SF314-56G"),
}
},
{}
};