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#21
I was having the same problem with the stuck mute button, it would stay orange even though if touched it would toggle the mute icon on and off on the speaker icon on the task bar. My problem was a bit worse, only the sub-woofer speaker on the bottom of the laptop was working, no output from the top speakers at all. I tried rolling back the driver and it worked initially, but the light was stuck again after a restart. So from Device Manager, I first uninstalled Nvidia high definition audio then i uninstalled IDT high definition audio codec. I then clicked, "Action" and "Scan for Hardware Changes" Windows noticed the missing drivers and installed the most recent versions and all is well. Thanks for the information, it was very helpful.
I thought I was the only one with that strange orange mute light mine comes on then will be off but makes no sound and I am living with it on an dv9720us HP notebook glad every one is finding the right drivers for the problem. Light went orange when i typed the last sentence but went out when I touched it as it should.
Here I am in July 2016, finding this solution to be the best I could find. My HP Elitebook 840 G2's F8 Microphone Mute is ON and I no longer can use my mic for skype or webex. After spending hours of downloading latest BIOS, HP hotkey support, etc. I found this post once I followed the quoted instruction, the F8 light is finally Off! I followed the exact instruction (I had only one High Definition Audio Device), and once I rollback'd the driver, the light went OFF. I can't believe Real Tek or HP had not updated a driver that would fix this problem during this time. But thank you!!