I have been having an ongoing problem with my DH77DF microphone inputs. Lately it has gotten bad enough that the mic is basically unusable.
When no mic is plugged in, the board thinks one is plugged into the front panel and wants that mic to be the default recording device. If I plug one in, the board thinks it is unplugged. Sometimes the sound display will rapidly flash unplugged on and off like it can't tell if a mic is there or not. What I really want is the back panel mic input to work. That is erratic but at least it works, sometimes. It has problems detecting if a mic is plugged in but sometimes gets it right, unlike the front panel which never gets it right.
For comparison, the speaker and headphone jacks work perfectly: Plug in and the system responds accordingly; unplug and it says so, for both front and rear audio.
System is running Windows 7 x64, BIOS 102, default Windows audio. Not using Realtek drivers and would prefer not to. (I have a similar 6 series board where the mic and speakers sense correctly without the Realtek drivers.)
Would like to know if there is anything else I can try or if I need to send the board back. Thanks.