linux - HDMI no signal debian -


i'm using lenovo ideapad 320s. can see hdmi1 connected in xrandr no picture. possible hardware new? , should move debian testing see if works? in xfce4 gui display application can see hdmi display disabled can't see how enable it. "xrandr --output hdmi1 --auto" doesnt help.

code:

os: debian 9.1 stretch   kernel: x86_64 linux 4.9.0-3-amd64   uptime: 8m   packages: 1789   shell: zsh 5.3.1   resolution: 1920x1080   wm: i3   gtk theme: arc-dark [gtk2/3]   icon theme: tango   font: sans 10   cpu: intel core i5-7200u cpu @ 3.1ghz   gpu: mesa dri intel(r) hd graphics 620 (kabylake gt2)


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