Dell Optiplex 5260 AIO microphone not working

I have a Dell Optiplex 5260 AIO, that I turned into a hackintosh. The install works very well but for some audio issues. The Audio codec is ALC3246 (ALC256). The system has a headphone combo jack on the side, an analog jack in the rear and a built in microphone. The only layoutid that enable both headphone and rear jack is 67. The issue with this is that the microphone does not work. I would appreciate if anyone could help me sort this out. Also there is no auto switch to the other port when the jack is unplugged from one port to the other. Other layoutids I have tried, will only enable the side headphone and the microphone and not the rear port.

  • All-in-One PC Black, Silver 65 W
  • Intel® Core™ i5 i5-8500 3 GHz
  • 21.5" Full HD 1920 x 1080 IPS Matt
  • 16 GB DDR4-SDRAM 2666 MHz 2 x 8 GB
  • SD Media Card Reader
  • Integrated camera 2 MP 1920 x 1080 pixels
  • Intel® UHD Graphics 630
  • Intel 9560 Wi-Fi (802.11ac) / Bluetooth 5.0
  • Ethernet LAN 10,100,1000 Mbit/s
  • USB Type-A & Type-C | DisplayPort

I have uploaded a copy of my pc codec dump from linux, would be glad if someone can figure it out for me. Thanks all.

https://drive.google.com/file/d/1MjRIRZAlnw03Ya820WzwgusWcm4nlxC2/view?usp=share_link

submitted by /u/ugooh
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