Thank Jake, Audio is now working with headphone and Tivi speaker via HDMI. Audio volume is still low but acceptable.
I attach the working bootpack for Vostro 5460.
CLOVER_5460.zip
layout id = 4, no audio output
With _ALC290, the built in audio device seem to work with very low sound, I tried to use a head phone to get more volume, but no sound come through, no external audio device detected
Hi Jake, still not working, no audio output.
The status of my Vostro 5460 with Sierra :
Ethernet: ok
Wifi: not ok, using TP-Link USB-wifi adapter
Audio: ok but low sound
Microphone: ok
HDMI: ok
Touchpad + keyboard: ok
Battery manager: ok
Camera: no driver
App Store: ok
icoud: ok
imess + facetime: not
....
Hi Jake, both layout-id 28 and 3 did not work, no audio output.
I find a similar issue with ubuntu in the link:
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1211920
http://thread.gmane.org/gmane.linux.alsa.devel/116843
They mention about missing subwoofer.
I tried SmartTouchpad v4.7 beta 5.zip in this thread: https://osxlatitude.com/index.php?/topic/1948-elan-focaltech-and-synaptics-smart-touchpad-driver-mac-os-x/
and it work perfectly. thanks Herve
Hi, I have prepared a USB-wifi adapter for wifi solution
About trackpad, I tried to use this ALPS driver and it seem to work, but I cannot change its setting because the trackpad prefpane is empty as the pic