On Wed, 29 Jul 2026, Marco Scardovi wrote: > In data mercoledì 29 luglio 2026 15:34:28 Ora legale dell’Europa centrale, Denis Benato ha scritto: > > > > On 7/29/26 15:22, Marco Scardovi wrote: > > > In data mercoledì 29 luglio 2026 15:10:56 Ora legale dell’Europa centrale, Denis Benato ha scritto: > > >> On 7/29/26 09:32, Hans de Goede wrote: > > >>> Hi Marco, > > >>> > > >>> On 28-Jul-26 15:56, Marco Scardovi wrote: > > >>>> In data martedì 28 luglio 2026 13:39:39 Ora legale dell’Europa centrale, Hans > > >>>> de Goede ha scritto: > > >>>>> Hi, > > >>>>> > > >>>>> Thank you for your patch. > > >>>>> > > >>>>> On 28-Jul-26 09:18, Marco Scardovi wrote: > > >>>>>> This series introduces support for ASUS WMI Whisper Mode hardware controls > > >>>>>> in the asus-wmi header and asus-armoury driver. > > >>>>>> > > >>>>>> Background & Findings: > > >>>>>> ---------------------- > > >>>>>> After talking with Denis and thanks to NeuroMarshal reverse engineering > > >>>>>> and > > >>>>>> firmware trace analysis on modern ASUS laptops, three specific WMI Device > > >>>>>> IDs were identified that manage acoustic profiles and thermal regulation > > >>>>>> under ASUS Whisper Mode: > > >>>>>> > > >>>>>> 1. ASUS_WMI_DEVID_WHISPER_MODE (0x0012007A): > > >>>>>> - Controls the BIOS-level Whisper Mode acoustic profile toggle > > >>>>>> (read/write boolean).> > > >>>>>> 2. ASUS_WMI_DEVID_WHISPER_ENABLE (0x00090022): > > >>>>>> - Enables or disables Dynamic Whisper acoustic regulation (read/write > > >>>>>> boolean).> > > >>>>>> 3. ASUS_WMI_DEVID_WHISPER_STATUS (0x00090023): > > >>>>>> - Reports status and allows runtime control over Dynamic Whisper state > > >>>>>> (read/write boolean). > > >>>>> I wonder how this interacts with the platform_profile stuff ? > > >>>>> > > >>>>> I would expect enabling whisper mode to lower the max performance, > > >>>>> so does this automatically change the platform_profile away > > >>>>> from performance when it is set to performance ? > > >>>>> > > >>>>> Note the platform_profile API is extensible. To me it seems more > > >>>>> logical to expose this as a whisper mode platform-profile ? > > >>>>> > > >>>>> Regards, > > >>>>> > > >>>>> Hans > > >>>> Hi Hans, > > >>>> > > >>>> Thanks for the feedback! > > >>>> Here you can find my opinions on your questions. > > >>>> > > >>>> 1. Interaction with platform_profile: > > >>>> In ASUS laptops, where presents, Whisper Mode operates as an > > >>>> independent boolean toggle/feature controlling fan acoustic target limits in > > >>>> firmware/EC, rather than acting as a global thermal profile. Setting > > >>>> WHISPER_MODE or WHISPER_ENABLE via WMI sends a direct call to the EC/BIOS, > > >>>> which adjusts acoustic thresholds internally without altering the active > > >>>> platform_profile state (throttle_thermal_policy) in asus-wmi. IIRC on Windows > > >>>> it even permits to "hear" the ambient to make the fans run in a way to blend > > >>>> with the ambient noise. > > >>>> > > >>>> 2. platform_profile vs firmware_attributes (asus-armoury): > > >>>> platform_profile is designed for mutually exclusive global power/thermal > > >>>> modes (Quiet, Balanced, Performance). Whisper Mode, on the other hand, > > >>>> consists of independent BIOS feature toggles (0/1 controls for BIOS Whisper > > >>>> Mode, Dynamic Whisper Enable, and Status). > > >>>> Since asus-armoury is dedicated to exposing BIOS/Armoury Crate firmware > > >>>> attributes via fw_attributes_class (similar to nv_dynamic_boost, > > >>>> nv_temp_target, panel_od, etc.), exposing these three WMI controls as > > >>>> sysfs firmware attributes fits the overall design of asus-armoury much > > >>>> better than extending platform_profile. > > >>>> > > >>>> I hope I've been of help. Feel free to let me know if you have more > > >>>> questions: I'll try to answer the best of my capacities. > > >>> Thank you for clarifying things. Since the EC/BIOS interface sees this > > >>> as 2 independent settings, I agree that exposing this as a firmware > > >>> attr is the best way to expose this. > > >>> > > >>> Its a bit weird that one can select Performance profile and enable > > >>> whisper mode at the same time. But if that is how the Asus firmware > > >>> interfaces work, then that is how it is. > > >> Hello Hans and Marco, > > >> > > >> I agree that this is weird and we don't have a device with whisper mode, > > >> but there is the possibility of the official windows app allowing whisper mode > > >> only on certain modes: we would need to find someone with windows > > >> to confirm this, but I also don't think binding whisper to quiet/low performance > > >> is a bad idea. > > >> > > >> My opinion is that either whisper gets its own profile and is a combination of > > >> quiet + whisper set to 1 or we check what windows does since I don't want > > >> to have hardware running in configurations that ASUS never intended to. > > >> > > >> Best regards, > > >> Denis > > >>> Regards, > > >>> > > >>> Hans > > >>> > > >>> > > > Hi Denis, > > > I made more checks on Whisper Mode and find out why it isn't under a single > > > power profile: it works the contrary of power profiles. > > > > > > To be more specific: while power profiles tends to match the fans with the > > > TDP, in Whisper Mode it sets the max power (if under performance) but cut > > > it if the dB/RPMs are too high to respect the Whisper Mode. So it basically > > > works for any power profiles but instead of pushing up the fans to cool the > > > CPU/GPU, it kills the power to maintain the loudness in check > > Alright, perfect. > > > Let me know if it is a feature you want or not. If we end up deciding to kill > > > it feel free to let me know. > > Yes I want this to be in the kernel: I simply don't want to do things that > > were never intended to be done, other than that I have no reservations. > > > > So you have my OK with these. > > > > > > Thank you, > > Denis > > > > > Best regards, > > > Marco > > > > > > > > > Hi everyone, > > I've made more and more studies about Whisper Mode and dumped my own laptop > to set my mind straight about Whisper Mode, because I had some more doubts > about it. > > TL;DR: Adding Whisper Mode is not useful for our drivers. > TL;DR 2: Whisper Mode enables only when power profile Quiet is set. > > Whole version: > After dumping the ACPI DSDT tables and testing runtime calls via a diagnostic > module on real hardware, I verified that the Embedded Controller (EC) automatically > manages Whisper Mode acoustic capping whenever `platform_profile` is set to "quiet" > (thermal policy 0x00120075 = 2). > > This behavior applies to both internal hardware and connected eGPUs. Because the > EC handles Whisper Mode natively within the quiet profile, discrete queries/writes > to WMI IDs 0x0012007A and 0x00090022 return 0xFFFFFFFE (unsupported). > > Therefore, exposing standalone Whisper Mode sysfs attributes is unnecessary, > as `platform_profile = quiet` already provides full Whisper Mode functionality. Okay. Nevermind my other email, I wrote it before noticing this (I finally have time to clear my long backlog of unanswered things after the Summer). -- i.