Analyzer 0 Report post Posted March 29, 2018 Hi, I read and followed Jake's comments in this thread so now audio is working but I am getting static noise from the headphones for E6540. I already put CodecCommander.kext in S/L/E I have abm_firstpolldelay=16000 Any idea why its doing that or what do I need to do to fix it? Thanks Share this post Link to post Share on other sites
Hervé 702 Report post Posted March 30, 2018 Did you repair permissions and rebuild your cache after adding CodecCommander to /S/L//E? Share this post Link to post Share on other sites
Analyzer 0 Report post Posted March 30, 2018 Yes and I had to keep on doing it until it registered the AppleHDA_ALC292.kext so audio can work. sudo chmod -Rf 755 /S*/L*/E* sudo chown -Rf 0:0 /S*/L*/E* sudo touch -f /S*/L*/E* sudo chmod -Rf 755 /L*/E* sudo chown -Rf 0:0 /L*/E* sudo touch -f /L*/E* sudo kextcache -Boot -U / But still static noise from the headphones Share this post Link to post Share on other sites
Analyzer 0 Report post Posted March 31, 2018 I re-installed and its fixed now. Share this post Link to post Share on other sites