double click on sound manager at panel
and
1. check device slected is alsamixer
2. CHeck all lines like MASTER,LINE IN ,HEADPHONES ,PCM are unmute .
if dey are mute turn them to unmute
mute = (X) cross sign below it
unmute= no (X) sign will b dere
3. Your sound will b working perfectly fine
Tried on ACER TRAVELMATE 4603
any further solution contact me on <email address hidden>
Solution found friendss
double click on sound manager at panel
and
1. check device slected is alsamixer
2. CHeck all lines like MASTER,LINE IN ,HEADPHONES ,PCM are unmute .
if dey are mute turn them to unmute
mute = (X) cross sign below it
unmute= no (X) sign will b dere
3. Your sound will b working perfectly fine
Tried on ACER TRAVELMATE 4603
any further solution contact me on <email address hidden>