Alienware 17 R4 - Tobii Eye Tracking not detected in "Device Manager".

Hi ytm0618‌,

Install this BIOS update : Alienware 15 R3/ Alienware 17 R4 System BIOS Driver Details | Dell US  

I already installed this BIOS update before several times yesterday, it didn't work.

But today I rebooted my labtop, it detected in "Device Manager" but till showed "no Eye Tracker connected".

What should I do?

Try with the steps given on dell support site , 

How to fix this issue?

When meet this issue,you need to manual add the write privileges on Tobii folder via below command:

1. Uninstall the Tobii Aware Software or Core Software (You can use C2F Revo Uninstaller)
2. Restart the computer
3. Install the Tobii Core or Aware Software version 2.10.0.6432 A05 or higher from Dell Drivers and Downloads
4. Restart the computer
5. Open CMD (Right Click in your Windows start button and click "Command Prompt (Admin)"
6. Run the following commands in order:
   1. net stop "Tobii Service"
   2. takeown /F %programdata%\Tobii\* /R
   3. ICACLS %programdata%\Tobii /t /grant Customer_User_Name:(OI)(CI)M
      
      Example: ICACLS %programdata%\Tobii /t /grant Alienware:(OI)(CI)M
   4. net start "Tobii Service"
      URL for support article Alienware 13 R3, 15 R3 & 17 R4 - Tobii Eye X Software Error Message | Dell India 

Uninstall the current version and install this one:

https://files.update.tech.tobii.com/Alienware_Eye_Tracking_Core_v2.10.1.6463_x86.exe 

You will also need to update your Realtek Camera driver:

https://help.tobii.com/hc/en-us/articles/115000449665-Is-your-Eye-Tracker-not-connecting-

Happy face detecting for log in! =)