audio not working with 3.5 jack monitor 7"

[lollo1988]

i have build a arcade cabinet with monitor 7"
https://www.waveshare.com/wiki/7inch_HDMI_LCD_(C)

the retropie working weel with tv and audio to jack 3.5"
when i plug the monitor 7" and setting this whit this configuration:
max_usb_current=1
hdmi_group=2
hdmi_mode=87
hdmi_cvt 1024 600 60 6 0 0 0
hdmi_drive=1
in config.txt the monitor working well
but the audio in the game non working
the audio in menu and in the game n64 working well

i select in retropie menu 3.5 jack

can you help with this problem thanks

lorenzo

[mitu]

Can you exit Emulationstation, then run from a command line

sudo amixer cset numid=3 1
# check the volume
alsamixer

Start ES again and start a game - see if it works.

[lollo1988]

don' t work i run your comand but the audio in the rom not working

can i help me?
i mod the the retroarch.conf for working audio?