The laptop has external amplification, but the headset has no sound
A long time ago, there was no sound division in the headset of my laptop. After searching on the Internet for a long time, I applied the method in the following article, and I did not expect to fix my computer.
Link: How to solve the problem of no sound when the earphone is inserted into the win7 notebook There is no sound solution when the win7 laptop is plugged into the headset .
具体方法：
1. Right-click on Computer -> Properties, selectDevice manager；
2. Click to viewSound, video and game controllerswithAudio input and outputCorresponding driver, check whether it is operating normally, if not, reinstall the driver, and thenReboot；
3. If the appeal drive is operating normally, open theSet up, Select System -> Sound -> Application Volume and Device Preferences, clickResetAfter, be sure toReboot。
PS: If the above method does not work, try to use 360 or Master Lu's driver test to see if the sound card driver is available, and update is required . Remember to restart after the operation .