Re: [PATCH] ACPI: PM: Add unused power resource quirk for THUNDEROBOT 911Pro

[Rafael J. Wysocki (Intel)]

On Sun, Oct 11, 2026 at 7:45 AM lofm2605 <lofm2605@xxxxxxxxx> wrote:
>
> From: VU TUNG LAM <lofm2605@xxxxxxxxx>

I would have applied the patch, but the above doesn't match the
Signed-off-by tag below.

Please fix this up and resend.

Thanks!

> On the THUNDEROBOT 911Pro laptop (board NLCC, BIOS TP127), the NVMe
> drive in the CPU-attached M.2 slot (0000:02:00.0, behind root port
> 00:01.1) and the discrete NVIDIA GPU (0000:01:00.0) are inaccessible
> after boot:
>
>   nvme 0000:02:00.0: Unable to change power state from D3cold to D0, device inaccessible
>   nvme 0000:02:00.0: error -ENODEV: probe failed
>   snd_hda_intel 0000:01:00.1: Unable to change power state from D3cold to D0, device inaccessible
>
> Both devices are enumerated normally and work under Windows. This is
> the same symptom as on the THUNDEROBOT ZERO, a sibling Tiger Lake-H +
> RTX 3060 model, which was fixed by commit cd7ef20ba8c6 ("ACPI: PM: Add
> unused power resource quirk for THUNDEROBOT ZERO"). The SSDT with OEM
> Table ID "TglH_Rvp" on this machine defines PXP_ power resources in the
> same way, but the existing quirk only matches product names containing
> "ZERO".
>
> Add a DMI entry for the 911Pro so that its unused power resources are
> left on, as is done for the ZERO.
>
> Fixes: a1224f34d72a ("ACPI: PM: Check states of power resources during initialization")
> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=222118
> Assisted-by: LLM
> Signed-off-by: LamVU <lofm2605@xxxxxxxxx>
> ---
> Not tested: I have not been able to build and boot a kernel with this
> change yet. The failure was observed with Ubuntu's 7.0.0-31-generic
> kernel, which already contains cd7ef20ba8c6. I can test a patched
> kernel and boot with dyndbg="file drivers/acpi/power.c +p" if needed.
>
>  drivers/acpi/power.c | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
>
> diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
> --- a/drivers/acpi/power.c
> +++ b/drivers/acpi/power.c
> @@ -1121,6 +1121,20 @@ static const struct dmi_system_id dmi_leave_unused_power_resources_on[] = {
>                 }
>
>         },
> +       {
> +               /*
> +                * THUNDEROBOT 911Pro (board NLCC): same SSDT bug as the
> +                * THUNDEROBOT ZERO above. Power resource 'PXP' is turned off
> +                * as unused during initialization, which makes the NVMe drive
> +                * in the CPU-attached M.2 slot and the NVIDIA dGPU
> +                * inaccessible.
> +                */
> +               .matches = {
> +                       DMI_MATCH(DMI_SYS_VENDOR, "THUNDEROBOT"),
> +                       DMI_MATCH(DMI_PRODUCT_NAME, "911Pro"),
> +                       DMI_MATCH(DMI_BOARD_NAME, "NLCC"),
> +               },
> +       },
>         {}
>  };
>