Zenbook Duo screenpad controls not working and more

[UX8402ZE]

Rules

• I made myself familiar with the Readme, FAQ and Troubleshooting.
• I understand that, if insufficient information or no app logs will be provided, my issue will be closed without an answer.

What's wrong?

1. Camera hotkey non functional, when pressed the pop up appears but doesn't affect the camera even when G-helper is ran as admin.
2. All asus services are stopped in extras but the hotkeys for the screenpad controls dont work such as Fn + Shift + F7 / F8.
3. I've learned that the hotkey must exist for it to function which is why FN+V/C/F4 doesn't work for me but I used to have FN+F which would change performance mode. Is there a workaround to get that to work again in G-helper?

How to reproduce the bug?

Issues are always there.

Logs

log.txt

Device and Model

Asus Zenbook Pro 14 Duo UX8402ZE

Additional information.

M1, M2, M3 and M4/ROG work but the rest of the hotkeys not.

Armoury Crate

Uninstalled

Asus Services

0

Version

0.196.0

OS

Windows 11 23H2

[seerge]

@UX8402ZE hello,

1. Camera hotkey toggles following setting in windows (try to change it and then reopen settings page to verify)
   

2. Fn + Shift + F7 / F8 didn't work cause your device does not contain DUO in a model name (in windows). I have manually added your model so try this build, it should work

3. I'm not aware about keycode that FN+F produces as on other devices it does nothing. I can only suspect it's 157 ? Can you check what WMI event # is being added to the log when you press it ? (like 22.10.2024 00:39:53: WMI event 157 ?)

GHelper.zip

[UX8402ZE]

when pressing FN+F this appears under WMI Activity:
Event number 12
ProviderInfo for GroupOperationId = 766; Operation = Provider::CreateInstanceEnum - CIMWin32 : Win32_Process; HostID = 5140; ProviderName = CIMWin32; ProviderGuid = {d63a5850-8f16-11cf-9f47-00aa00bf345c}; Path = %systemroot%\system32\wbem\cimwin32.dll

There also appears to be a second event that takes place with 12 which is 50 and the activity is "Activity Transfer"

[UX8402ZE]

In the new build FN+F replaces the M4/ROG button so that they now do the same function. It is possible to have FN+F be default for performance mode and the ROG (MyAsus button) to open/close ghelper?

I've done the camera settings change but now the camera no longer displays a pop up and also doesn't function as intended.

Fn + Shift + F7 / F8 still doesn't work in the build but I now have the options for screenpad brightness in the drop down menu.

log.txt

[seerge]

@UX8402ZE

1. You don't need to toggle that setting in windows by yourself. What I meant is that G-Helper toggles this setting when you press mic hotkey. This is the only known way to me to toggle camera ON or OFF :) When camera access is set to OFF in windows apps won't have access to it. And on your screenshot i see that you didn't run app as admin this time (so mic toggle won't work)

2. It could be that FN + F7 / F8 by itself don't produce any keycodes on your model and just directly control windows brightness on hardware level. Do you see any entries being added to log.txt when you press them ? If no - then there is no keycode, so catching them will be impossible.

Event number 12
ProviderInfo for GroupOperationId = 766; Operation = Provider::CreateInstanceEnum - CIMWin32 : Win32_Process; HostID = 5140; ProviderName = CIMWin32; ProviderGuid = {d63a5850-8f16-11cf-9f47-00aa00bf345c}; Path = %systemroot%\system32\wbem\cimwin32.dll

3. Where is that ? I don't see it anywhere in log.txt. But since you say that FN+F now does same as M4 - my initial guess that keycode is 157 was correct. This build should toggle performance modes from FN+F and also backwards with FN+SHIFT+F.

GHelper.zip

[UX8402ZE]

You are indeed right it seems that FN+F7/F8 doesn't seem to exist for my model. Is there anyway to make a custom hotkey for brightness up and down for the UX8402 model. As far as I remember the brightness of the screenpad was only adjusted with the screenxpert UI.

In the new build Fn+F (=Fn+F4 in ghelper) lowers the screenpad brightness (which I don't mind, I'll just control the performance with M4/ROG) but I can't seem to bring the brightness back up.

Camera button does toggle the setting but when the camera is on and then the button is pressed the camera remains on. Also the red light doesn't work when disabling the camera.

log.txt

[seerge]

@UX8402ZE

You are indeed right it seems that FN+F7/F8 doesn't seem to exist for my model. Is there anyway to make a custom hotkey for brightness up and down for the UX8402 model. As far as I remember the brightness of the screenpad was only adjusted with the screenxpert UI.

You can try to assign (available on your model) hotkeys under Extra. Also you have dedicated screenpad button as I remember? :)
I can try to add some custom key combos for that (like CTRL+SHIFT+ALT+F7/F8), but i'm not sure if this is a good idea

In the new build Fn+F (=Fn+F4 in ghelper) lowers the screenpad brightness (which I don't mind, I'll just control the performance with M4/ROG) but I can't seem to bring the brightness back up.

My bad ... i have set it to FN+F4 instead of FN+F5 :) try this build
GHelper.zip

Camera button does toggle the setting but when the camera is on and then the button is pressed the camera remains on. Also the red light doesn't work when disabling the camera.

Well, it remains on but it's not accessible to apps. That's best I can do. How did it work when you toggled it via asus app ?

[seerge]

@UX8402ZE this build should control screenpad brightness also with CTRL+SHIFT+ALT+F7/F8

GHelper.zip

[UX8402ZE]

@seerge that is perfect!! it works wonderful

Well, it remains on but it's not accessible to apps. That's best I can do. How did it work when you toggled it via asus app ?

previously with MyAsus the camera button would disable/enable the camera instantly (light indicator as well) however it wouldn't affect the camera in privacy settings. Here's a video:

Zenbook.Camera.mp4

[seerge]

@UX8402ZE well, if you really want to bother with that - it's possible to try to reverse-engineer how it was doing this (without guarantees it will work tho).

You will have to install special app to intercept ACPI calls and then run this toggle using asus tools and check what it catches
Here is a quick guide on what needs to be done https://github.com/seerge/g-helper/wiki/_ACPI-Monitoring-and-Debugging

Let me know if you want to try

[UX8402ZE]

@seerge I'm really not tech savy but I'll give it a go

[seerge]

@UX8402ZE before you do that, can you check what exactly happens to camera device in windows Device Manager ?

Does it disappear completely ? Or gets disabled ? Or just stays as is ?

[UX8402ZE]

@seerge it stays as is, the devices are still there.

[seerge]

@UX8402ZE ok, then it's probably some proprietary hardware-toggle there

[UX8402ZE]

@seerge Im most likely not going through with the reverse engineering since my laptop almost got bricked just decrypting it. Thank you very much you resolved all my issues :)

[seerge]

@UX8402ZE you mean disabling windows encryption / bitlocker? I honestly don't get why windows has it ON by default even :)

But ok, no worries. Then I'm closing this as resolved, and will include new hotkeys in next release

[UX8402ZE]

@seerge yup its such a pain and perfect I hope this helps other DUO users!

[ImBehinYa]

Hi @seerge UX482EA also doesnt contain DUO

2. Fn + Shift + F7 / F8 didn't work cause your device does not contain DUO in a model name (in windows). I have manually added your model so try this build, it should work

[seerge]

@ImBehinYa hello, I have added your device to the list of DUO models too
GHelper.zip