This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

DS90UH949-Q1: HDMI signals missing totally

Part Number: DS90UH949-Q1

Dear all,

i am connecting a cpu HDMI output to the 949 hdmi input. CEC and DDC lines are also properly connected.

Very strangely, i cannot see any DDC (i2c) activity, and even if remote side (Linux) properly probe the hdmi controller device, i cannot get any hdmi signal in the hdmi output, 

fbset                        

mode "1024x768-0"
	# D: 0.000 MHz, H: 0.000 kHz, V: 0.000 Hz
	geometry 1024 768 1024 768 16
	timings 0 0 0 0 0 0 0
	accel true
	rgba 5/11,6/5,5/0,0/0
endmode


cat buffer.raw > /dev/fb0
----------------------------------------
nothing at all on the output

Since linux side setup and circuit are the same of previous tests, where in place of the ds90uh949 there was just an hdmi connector, and hdmi was working, i am wondering if the current "no signals" issue can be due to some ds90uh949 wrong configurations.

Every help is appreciated.

Regards,

angelo