Re: [BUG] HP OMEN Transcend 14 (board 8E41): GPU power ceiling on 65W USB-C charger is non-deterministic

[Krishna Chomal <krishna.chomal108@gmail.com>]

On Fri, Sep 25, 2026 at 09:41:48AM -0400, BurningHoryd wrote:
>Krishna,
>
>Thanks for taking a look. The acpidump is already up -- BIOS is still
>F.05 (same as when I captured it on 8E41), so a fresh dump would be
>byte-identical to what I already have; no need to redo it.
>
>Full acpidump + decompiled SSDT23 (the table with the NPCF device) is
>attached to my earlier comment on the NVIDIA issue:
>
>  https://github.com/NVIDIA/open-gpu-kernel-modules/issues/1162#issuecomment-5779711336
>
>Same topology as board 8D40 from that issue: NPCF sits under \_SB as a
>peer of the GPU rather than as its PCIe child, which is why the open
>kernel module's NPCF binding misses it and Power Management Object
>stays N/A. That explains why >50W Dynamic Boost never works here, but
>it's a separate mechanism from the 25W/65W split on the 65W charger --
>PMO is N/A in both states, so it can't be what's flipping that.
>
>Happy to attach the raw acpidump/ssdt23-acpi.zip directly to this
>thread instead of linking out, if that's easier for you to work with
>-- just say the word.

Thanks but I can only find SSDT23, I wanted to take a look at the HP WMI
side too. Is it possible for you to attach the full acpidump instead?

>Thanks for flagging the missing Signed-off-by on the other 8E41 patch
>too.