i'm having some pretty serious problems with this driver, and i've registered here hoping to find a solution.
i have a system built around an asus a8v vm motherboard (yeh so it's 4 years old now). it has the realtek alc 660 codec onboard. it's got an athlon 3000 (or thereabouts) in it, a gig of RAM, and a geforce 6200 se vga card installed.
i recently upgraded it to windows 7, and aside from the realtek hd audio problems i'm about to describe, it's a vast improvement over XP (it's my HTPC and xp has it's own problems and shortcomings for this sort of thing), and i really don't want to downgrade back to XP if i can avoid it.
i only performed this upgrade about two weeks ago, and so downloaded all latest drivers, including the then-latest realtek hd audio driver v2.39. this was a clean install on a freshly formatted drive, not an upgrade over XP.
and i've had nothing but problems with the realtek hd audio codec - the main problem i was having with v2.39, is that the driver itself gets disabled on bootup, resulting in no sound. i can still see the device in the device manager, but there's a red X on the speaker icon, and going to "playback devices" gives a message along the lines of "there are no output devices installed". the audio inputs remain intact, but the outputs (and the speakers) are gone.
reinstalling the driver from the executable installer fixes this - although it prompts to reboot, the sound comes back immediately, the red X disappears from the speaker icon, and i can choose stereo speaker outputs again. however, one reboot later and it's all gone again.
various troubleshootings have led me to disable driver signing (with mixed results - it would survive several reboots, but eventually would be gone again), and has also led me here, today, where i find there's been a new driver released. hoping this will be the end of these problems, i eagerly download it.
well i've spent the last hour battling with it. it simply will not install. it first prompted me to remove the old driver, then reboot and run the installer again. so i did that, and that appears to have worked. but now when i try and run the installer, it tells me "no device supported" or something along those lines. if i attempt to run it again i also sometimes get an error "failure error -0101". i also got a message from windows saying "hd audio device successfully installed" some time after uninstalling the old one (after at least one reboot, i think perhaps two reboots) - so it looks like it found an old driver file and reinstalled it for me. i've uninstalled it again from the device manager, and tried the 2.40 installer again, and still no dice. no matter what i do, i cannot get this installer to run.
also, at several occasions during the v2.39 episode, attempting to run the installer to fix the sound also prompted the same error "no device supported", however a reboot and subsequent re-attempt worked whenever that happened. this time now, i've tried about 8 times, with as many reboots, and still it will not run.
i'm certain there's no hardware problems - i've been running this system, under heavy load without any problems whatsoever, ever since i bought that motherboard new back in 2006. and right up until the moment i installed windows 7, the sound (and everything else) has worked fine. also, the fact that the 2.39 driver did work, consistently so, at least until a reboot, would suggest that the hardware is fine. i'm 100% certain that if i format and reinstall XP, the sound will be back to normal again.
i also notice that my model, the ALC 660, is listed in the WHQL list at the start of this thread - yet when i first installed 2.39 windows complained about it being unsigned (at some point trying to fix the problems i had with 2.39 i've probably disabled whatever brings up this warning, it certainly hasn't been appearing the last few times i reinstalled 2.39). and now the 2.40 installer doesn't even recognize my chip, despite it being in the official list of support models.
what can i do? i'm fairly sure i've exhausted all my options. i fix windows systems and servers for a living, so i'm pretty confident poking around in places where others might not, however with 7 being a new OS i'm still learning things about it.
any help/suggestions gratefully received...