From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 D67803A9854 for ; Tue, 13 Oct 2026 07:45:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791877512; cv=none; b=AdN8bJEXCl+jEM97qfqIeqGh/l2TOzKkRuk4fDiX29CCDOi4AEr1dv24aqtUiiJ+CkI5Vs6omn+n+ndUxn9vbm40+On081YiGjEx1A2hFuILMUz1mpkWSWPc/FN9lILOpXtvTaH1UTICenrGkhJC4Pv5n3YXcds/n9fD3nJsga4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791877512; c=relaxed/simple; bh=IG3dj2ijvINyEe8UUDLzxA45RNjLDg7sSz8DQTZlMPw=; h=Message-ID:From:Subject:To:Cc:In-Reply-To:References:Content-Type: Date; b=iFUrQVoNV5x6yV7i8/4ppBThl2evy+Bd6lTvh8vcWWeyHDqJXX0PwPzfMISv4t8AZDmoXXdVW1fx8iTCBjFARWNdDpfzWCqOYX3E0KkRaOqDA/wJWodGLcCJQ2GYQCg4dSdaRO5fEwvDHBRdAjA1xKKIHCwskYJsCjuuWtlGJws= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=TSXphOCM; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="TSXphOCM" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9672E1F000FF; Tue, 13 Oct 2026 07:45:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1791877511; bh=vUOMr3norAYbIDIPuSlAR5Gbza0PqUGkoEMHAp2gRug=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=TSXphOCMV7vLppRXK73+9ejx68+MGDAaLUOMuCKelp9HdoDiJW+OUAtwHL0TsnB5u C24amT6BNA5NpYirUf3ELcFljd7rqcwT5hYQH+EP/G+9tC+i7r/QcO75Md+8PZUc+q bdSZtKApLkbMLr1QzNll/Lv7a5G2k/7s4yfW0w4Pe3QKIDLlTLAYevK54hEIFD6m7C 3tY5jGvj3s8MVVD/xM4tn2x18kGpbASZobXuyCIRG1ixgzLdoBJdIyJ8veO6JPiDCY n24R0BNWovnzNG/lAgs046TdQVQvaCSfk/+W5OqZZILmcVOmXLI9GusqPoNa5l0vnz Zl7KMviF930kQ== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH] ACPI: PM: Add Acer Aspire A515-53G to dmi_leave_unused_power_resources_on Reply-To: sashiko-reviews@lists.linux.dev To: "Krittikun Wongnin" Cc: linux-pci@vger.kernel.org In-Reply-To: <20261013074245.4327-1-krittikunwongnin@gmail.com> References: <20261013074245.4327-1-krittikunwongnin@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Tue, 13 Oct 2026 07:45:11 +0000 Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: > On the Acer Aspire A515-53G (Whiskey Lake + NVIDIA GeForce MX230), the > dGPU behind root port RP05 (00:1c.4) falls off the bus during boot and > is unusable until the next power cycle: >=20 > nvidia 0000:02:00.0: Unable to change power state from D3cold to D0, de= vice inaccessible > NVRM: The NVIDIA GPU 0000:02:00.0 ... has fallen off the bus >=20 > The firmware ships two SSDTs which both provide power management for > the dGPU: >=20 > - One SSDT defines \_SB.PCI0.RP05.PC01 together with > RP05._PR0/_PR2/_PR3 =3D { PC01 }. >=20 > - A second SSDT defines \_SB.PCI0.RP05.PCRP (_STA initially One, > _OFF calls \_SB.PCI0.HGOF, which puts the link into L2/L3 and drops > [ ... ] > bound and power/control set to auto, RP05 reaches D3cold and the GPU > comes back to D0 on resume. >=20 > Link: https://lore.kernel.org/r/CADS-TgDQ1G8vrTQLJeQ3RTBVFTyMe0C+5p2=3DUB= KS=3DEFCDFuaxw@mail.gmail.com/ > Signed-off-by: Krittikun Wongnin Sashiko has reviewed this patch and found no issues. It looks great! --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261013074245.4327= -1-krittikunwongnin@gmail.com?part=3D1