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authorZhai Can <bczhc0@126.com>2026-02-15 00:14:52 +0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2026-02-16 18:22:15 +0100
commitcd7ef20ba8c6e936dba133b4136537a8ada22976 (patch)
tree13ee074fc8620ef59c1cfa263acb4203b802f5f0 /rust/alloc/collections/git@git.tavy.me:linux.git
parentd84e173311c4f0b0300755e6445f3224d252eeed (diff)
ACPI: PM: Add unused power resource quirk for THUNDEROBOT ZERO
On the THUNDEROBOT ZERO laptop, the second NVMe slot and the discrete NVIDIA GPU are both controlled by power-resource PXP. Due to the SSDT table bug (lack of reference), PXP will be shut dow as an "unused" power resource during initialization, making the NVMe slot #2 + NVIDIA both inaccessible. This issue was introduced by commit a1224f34d72a ("ACPI: PM: Check states of power resources during initialization"). Here are test results on the three consecutive commits: (bad again!) a1224f34d72a ACPI: PM: Check states of power resources during initialization (good) bc2836859643 ACPI: PM: Do not turn off power resources in unknown state (bad) 519d81956ee2 Linux 5.15-rc6 On commit bc2836859643 ("ACPI: PM: Do not turn off power resources in unknown state") this was not an issue because the power resource state left UNKNOWN thus being ignored. See also commit 9b04d99788cf ("ACPI: PM: Do not turn of unused power resources on the Toshiba Click Mini") which is another almost identical case to this one. Fixes: a1224f34d72a ("ACPI: PM: Check states of power resources during initialization") Closes: https://bugzilla.kernel.org/show_bug.cgi?id=221087 Signed-off-by: Zhai Can <bczhc0@126.com> Link: https://patch.msgid.link/20260214161452.2849346-1-bczhc0@126.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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