samsung monitor ls 32a700nwuxen doenst operate hdmi

[Wolf1977]

hi
i have the above monitor and while it turns on normally
i can go to menu and in other choises
when i connect a source the display counts 3 seconds and after turn off
it doesnt sense the signal
does someone have similar problem ;

[Wolf1977]

Re: samsung monitor ls 32a700nwuxen doenst operate hdmi

i did an update
the same situation
at the duration i dont have connect signal hdmi from a source
i have a message no signal normal
when i connect signal from a source e,g a laptop dissapear the message and after three seconds goes to sleep mode the monitor
i have not message optimum resolution
if and i changed analysis without result again
can someone tell me if this is problem of motherboard
or i must change and other things in settings
thanks on advance