dasaint80

Nope still nothing. I might just try to reinstall HS and see what happens.

Nope still no audio!

I did as you said and audio still not working. here's the new debug report. debug_16622.zip

Hey All, I have a HP EliteBook 8770W: Intel core i7 3720QM Nvidia Quadro K3000m (No Intel Graphics) 500GB Samsung SSD 500GB WD SSD 32GB ram 1600 Mhz It's mostly working fine except the Audio (IDT 92HD80) isn't working I tried DSDT Patch layout-id-3 and Apple HDA Patcher, with no success. I also would love to get the backlight working but not as important as the audio. I attached the debug report. Last login: Thu Aug 23 20:23:34 on ttys000 Estebans-iMac:~ dasaint80$ pmset -g System-wide power settings: Currently in use: standby 1 womp 0 halfdim 1 hibernatefile /var/vm/sleepimage powernap 0 networkoversleep 0 disksleep 0 sleep 10 (sleep prevented by Google Chrome) autopoweroffdelay 14400 hibernatemode 0 autopoweroff 1 ttyskeepawake 1 displaysleep 10 standbydelay 4200 Estebans-iMac:~ dasaint80$ Thanks, Steve debug_8449.zip

Hey Ammar123, Im trying to install High Sierra onto my Elitebook 8770w same specs as yours. can you share what install procedure did you use? I have yosemite installed onto my probook 6570b, just looking to upgrade my Elitebook to OSX. Thanks, Steve