Re: acer-wmi: Nitro button doesn't produce a WMI event

[Armin Wolf <W_Armin@gmx.de>]

Am 01.01.25 um 20:53 schrieb Hridesh MG:

>> This ACPI method should trigger the turbo mode button (found inside the DSDT table):
>>
>>          Method (_Q58, 0, NotSerialized)  // _Qxx: EC Query, xx=0x00-0xFF
>>           {
>>                  Debug = "=====PROJECT_QUERY_58====="
>>                   ^^^WMID.FEBC [Zero] = 0x07
>>                   ^^^WMID.FEBC [One] = 0x04
>>                   ^^^WMID.FEBC [0x02] = One
>>                   Notify (WMID, 0xBC) // Device-Specific
>>          }
>>
> I feel like an idiot right now but I just realized something: So far
> I've been assuming that the button I've been calling the "Turbo
> Button" worked the same way on both Nitro and Predator laptops, but
> that's not the case.
>
> On Predator laptops, the button directly enables Turbo mode but on the
> Nitro it only opens the Nitro Sense app. I had assumed that both
> buttons simply opened the app and that directly enabling Turbo mode
> was a feature provided by the Linux driver.
>
> Given this, the ACPI code that you linked earlier is probably for the
> Predator's "Turbo Button". Could it be that the button on my laptop
> doesn’t use that ACPI code at all, considering its functionality is
> completely different? (Though i doubt Acer would leave it in if it
> wasn't being used)

It is quite common for manufactures to just copy and paste ACPI code snippets, so it is not
unusual to have some unused code inside the ACPI tables.

Did you receive any input events or dmesg messages when pressing that button?

If no then it could also be that this button depends on the Intel THC touch controller to work,
take a look at https://lore.kernel.org/all/20241216014127.3722172-1-even.xu@intel.com for details
about the Intel THC controller.

Thanks,
Armin Wolf