Buy a new notebook computer display external image display is normal, bottom right corner of the small speaker is also normal, but is not sound right, HDMI cable, Philips 227E3QPH display model.
HD lines are audio, that is to say, after inserting the default high-definition output, right trumpet - play device - select the speaker for the system default output
You first make sure that the monitor itself is a built-in speaker. Not all monitors have built-in speakers.Secondly, through the HDMI output, the relevant driver must install all.Because the voice of HDMI is actually managed by GPU. To put it plainly, if you use HDMI, it doesn't matter if your host has a sound card. HDMI has integrated the sound card in the video card aspect.Oh, oh. To correct it, the onboard sound card is not closed. But does not affect the above answer, drive or must.
Adjust settings are as follows: HD line is audio, insert the default high-definition output.Specific operations: right PC desktop, right lower corner speaker - select play device - and then select the speaker - set the default output for the system.
The following methods are for your reference:Laptop computer after external display no sound, I suggest you install video card driver to try.
