Today I found out that the sound stopped working on both Win 7 and Win 8.1 systems installed on my home PC, whereas it still works perfectly fine on Debian running on the same machine. I haven't touched anything related, so I am not sure what could be the reason.
How can I debug what is wrong? I don't really know where to start. All the drivers in hardware manager seem fine. I am just using the sound card in my chipset (old Asus board based on Intel chipset, from the Core 2 Quad era) with standard Creative speakers connected using a mini jack.
EDIT: Windows doesn't seem to recognize that my speakers are plugged in, maybe the graphics chip stopped reporting this correctly. Is there a way to force it to play regardless?