Hi, I have an older Lenovo laptop that just made it through the upgrade to Win 10 but with some initial headaches related to the RealTek audio: 1. At about the 95% complete mark, the speakers began to feedback aggressively (ear-splitting) with the hardware mute button non-functional 2. At 100%, I forced a restart of the system but the shrieking continued 3. Two additional restart/power cycles later, the feedback ended and the system continued with the Win 10 upgrade as expected I suspect that the sound card may not have been ready for the upgrade and that Win 10 might have resorted to a generic driver, but after all the "fireworks", the RealTek Audio Manager software is working as expected and the sound/mic are also working properly. Did anyone else experience this and if so, did you need to eventually upgrade or change the driver for the sound card?
I have heard of folks having "sounds not working" problems, but not the shrieking issue you described. In my case, my rear surround speakers were not working after my upgrade to W10. I had to uninstall the RealTek drivers, do a "cold" restart (shutdown and unplug from the wall, connect and boot) before they were finally picked up again. I wonder if it really was "feedback" which would be sound from the speakers being introduced into the microphone circuit, amplified and "fed back" through the speakers only to be picked up again by the microphone circuit and so on and so on. Anyway, I am glad it finally sorted itself out.
If it wasn't feedback it certainly was a good imitation of the effect lol. You might be on to something with the cold boot because the last power cycle I took it off AC and the process completed normally. Perhaps it had something to do with the power management? That seems a bit strange as the power shouldn't effect the sound driver...
No, but when a computer is simply shutdown, it really goes into standby mode, not totally off. This is particularly true with PCs where the power supply continues to supply +5Vsb standby voltage to many points on the motherboard. While to a lessor extent, this also happens with some notebooks that remain plugged into their chargers too.
This is strange and I am wondering if this issue can be isolated by taking a look at the Win 10 cumulative updates for Oct. I had assumed the problem was addressed when the upgrade was completed and had not had any issues with updates through Sept but this month marked the return of the ear-splitting sound feedback problem. The issue finally cleared following several forced power cycles with the system updates being completed successfully and the feedback issue not present in normal boot. Does anyone have any insights given this update to the issue thread? Fingers crossed...
