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IMX6DL android5.0 HDMI has no sound!!!

Question asked by 尚飞 汤 on Feb 2, 2016
Latest reply on Feb 3, 2016 by 尚飞 汤

First our HDMI has no sound,when i check the cmdline dev=hdmi,1280*1080M@60 not the same like the device tree,the device tree is 1920*1080M@60,

I change the cmd line to 1920*1080M@60, the HDMI sound is ok.

 

can anyone tell me why????????how could the HDMI resolution affect the audio????

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