Question PHILIPS 246v5LDSB/01 with hdmi no sound from speakers

[Birdstion]

Hi i had this monitor for some time now and i've decided to use it's speaker
I can see a sound menu in the monitor menu and i made the volume 100 and the mute:OFF
i also checked my nvidia control panel and made sure dgitial audio place set
http://prntscr.com/o34q7c
and my windows audio is also set
http://prntscr.com/o34q7c
but when i do the "test sound" i hear no sound at all

 

[rgd1101]

https://www.philips.co.uk/c-p/246V5LDSB_01/lcd-monitor/support

https://www.download.p4c.philips.com/files/2/246v5ldsb_01/246v5ldsb_01_dfu_eng.pdf

manual
Built-in speakers 2W × 2 (246V5LAB/246V5LHAB)

 

[Birdstion]

Oh it has an earphone jack.
I appreciate your help you may close the post.