Hello ,
I am using a HP DV4 model laptop with windows 7 32 bit .From past one week there is absolutely no sound output from the internal speakers or the headphones.I tried reinstalling the drivers, disabling them and all other trouble shooting methods, but it was of no use.
Finally,i connected my laptop to my TV via hdmi slot and there is sound output on my tv.Also there is sound on my headfones when i connect my headphones to the usb sound card (dongle).
What could be possibly wrong with my laptop? Hardware issues?