I disabled iGPU Multi-Monitor and RC6 and nothing hapened.
Bad luck. At least you excluded a possibility.
What's up with the old drivers provided by ASUS?
Judging from Datasheet, Vol. 1: 7th Gen Intel® Processor Family for S Platforms pages 36ff Kabylake seems to prefer display port for multiple displays which is missing on your mainboard.
I'm not sure though if a display port is mandatory.
Finally it's WORKING!
I don't know exactly how it happened.
I switch HDMI ports on TV,HDMI 1 & HDMI 2,and nothing happened,
same as yesterday when i switch HDMI 1 & HDMI side port.
Btw all ports are tested and working. (with previous PC,Laptop,USB)
I turn TV on/off,i reboot PC and stil nothing.
Then when i boot to BIOS,suddenly picture (BIOS screen) show on both displays for the first time.
Since then i reboot and turn off PC several times,turn on/off TV and everything working fine.
TV is always auto detected,and HDMI output working.
I cant't say what triggered it to work,but those are the steps i take before it happened.
Thanks for help!