I recently installed Linux/Win7 dual boot on my laptop. I've done partitioning as following
-win7 main partition (for system)
-this little windows-neccesary partition
-ntfs partition for shared files (music, documents etc.)
-this ntfs partition "includes" all the linux directories: / /home /swap etc.
, so it should be fine (at least I think so)
Before that, everything worked "smoothly" on w7. I had sound on internal speakers, and after putting in a jack the sound went only to external ones.
In Linux this works even better - OS remembers volume levels for each device, which is nice.
Anyway, to the point - when i want to run some games, i boot w7. Unfortunatelly, I'm albe to produce sound only via internal speakers - pluggin a jack mutes the computer. However, windows still works his audio, because the sound level thingy is bumping up and down (when playing music). I plug out jack - sound from internals. I plug in - no sound at all. I already reformatted and reinstalled both windows, then linux - issue persists. I updated sound drivers, reinstalled them few times, updated bios - same thing.
Actually, SOMETIMES sound is back - I noticed it's after fiddling with sound devices in Linux - I played some movies via HDMI and had to change audio to HDMI -> worked perfectly, then after rebooting to win7 I had sound. Only to the moment i reboot again to linux and back to windows.
Any ideas? Sound worked perfectly before Linux, works now perfetly in Linux but is corrupted in Windows. I've searched a lot thoubleshooters on google, but everything says basically the same - reinstall driver, check if device is enabled.
And please, don't answer the standard one - "Linux doesen't mess with Windows, it's not Linux problem". I'm not familiar with how Linux handles sound there, but my guess is that it makes some "pseudo-hardware" changes, which are unrecognized by Windows. I'm kinda Linux-new, however I'm not some computer-noob either.