From nobody Thu Apr 2 23:54:49 2026 Received: from m16.mail.126.com (m16.mail.126.com [220.197.31.8]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4A04D1548C; Sat, 14 Feb 2026 16:15:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.197.31.8 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771085740; cv=none; b=Oyh5ka1GNT9vdOM8eBm6CRGYH0K2A+KrBsPkxZ1T7jy5EuOf7rhNuXIgsiuPlMERMg/mVZyS12qk66Q1aXXEsXeFRbt4q9/QX67qLFdbA3WBS/TXNWjstNGT8sOQsFsKfcqLhFN7SGzmBNojo7pWcI9d/4wI1r7hLSaEKa55Q+U= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771085740; c=relaxed/simple; bh=yXmVIuG2vtSrnsZnJEWSoxkWgYlWENfl+zfqoWvx+ls=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=l+niZ3OMrU3ZeZML76UeM3gTcjjHVvhBEuL34VYxnmpTvuercT1MCYoSqMBdm0gNB9m3JjWzWas7T5xYIKtcKLwBpPdRPvYrQGXAoR30/42XFMJjc2JwVuyl1S3oZt6BK7yV7eYhi39YES9yVXt/eC8WDrARXG9JPU3L+eMnOkY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=126.com; spf=pass smtp.mailfrom=126.com; dkim=pass (1024-bit key) header.d=126.com header.i=@126.com header.b=Xt2lzwkx; arc=none smtp.client-ip=220.197.31.8 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=126.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=126.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=126.com header.i=@126.com header.b="Xt2lzwkx" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=126.com; s=s110527; h=From:To:Subject:Date:Message-ID:MIME-Version; bh=t1 Omtm7Z3WjifG8nSb5bwSmycGi+6thW/gXZ/+jKJLg=; b=Xt2lzwkxceyAza+Lnm tKgpOmWUvwc6SX4XGUTcFb0i6VJ9UbxyT8wI056ADIQv8W4vi0dFmPr+b0PktpVi ir9bf2BCS3bNLLD5TwX9HnmwIxMLOBFnNWXI6xxwPCvyQPK0+mNxd1V9Qhg39sJ4 S6wuKjqRePXidtXOM+rV7RhHA= Received: from bczhc-arch (unknown []) by gzga-smtp-mtada-g1-3 (Coremail) with SMTP id _____wD3Zw6dn5Bpd+65Ag--.13379S2; Sun, 15 Feb 2026 00:15:25 +0800 (CST) From: Zhai Can To: rafael@kernel.org, linux-acpi@vger.kernel.org Cc: linux-kernel@vger.kernel.org, bczhc0@126.com Subject: [PATCH] ACPI: PM: Add unused power resource quirk for THUNDEROBOT ZERO Date: Sun, 15 Feb 2026 00:14:52 +0800 Message-ID: <20260214161452.2849346-1-bczhc0@126.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: _____wD3Zw6dn5Bpd+65Ag--.13379S2 X-Coremail-Antispam: 1Uf129KBjvJXoW7ury7JFy7AFWUKrykuF43GFg_yoW8ZFyUpr s2qa98JwnrtF4UJFWYyw1jqF9xXw1vkr4aga9Ikrs3Xa4Y9F9Yyr1aqFZ5AFyYy3W2gF1F vF1UZr1UCFnxWa7anT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x0z_PfHxUUUUU= X-CM-SenderInfo: xef2xuaq6rjloofrz/xtbBpB2NjGmQn534fAAA3H Content-Type: text/plain; charset="utf-8" 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 st= ate (bad) 519d81956ee2 Linux 5.15-rc6 On commit bc2836859643 ("ACPI: PM: Do not turn off power resources in unkno= wn state") this was not an issue because the power resource state left UNKNOWN thus be= ing 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 init= ialization") Link: https://bugzilla.kernel.org/show_bug.cgi?id=3D221087 Signed-off-by: Zhai Can --- drivers/acpi/power.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c index 361a7721a6a8..7da5ae5594a7 100644 --- a/drivers/acpi/power.c +++ b/drivers/acpi/power.c @@ -1113,6 +1113,19 @@ static const struct dmi_system_id dmi_leave_unused_p= ower_resources_on[] =3D { DMI_MATCH(DMI_PRODUCT_NAME, "SATELLITE Click Mini L9W-B"), }, }, + { + /* + * THUNDEROBOT ZERO laptop: Due to its SSDT table bug, power + * resource 'PXP' will be shut down on initialization, making + * the NVMe #2 and the NVIDIA dGPU both unavailable (they're + * both controlled by 'PXP'). + */ + .matches =3D { + DMI_MATCH(DMI_SYS_VENDOR, "THUNDEROBOT"), + DMI_MATCH(DMI_PRODUCT_NAME, "ZERO"), + } + + }, {} }; =20 --=20 2.53.0