https://community.nxp.com/t5/i-MX-Processors/imx8mq-hdmi-does-not-work/m-p/988593#M146791 <HTML><HEAD></HEAD><BODY><P>Solved!&nbsp;<SPAN style="color: #51626f; background-color: #ffffff;"><SPAN>&nbsp;</SPAN>4.14.98-imx_4.14.98_2.0.0_ga kernel should use&nbsp;<SPAN>&nbsp;the corresponded device tree. I used&nbsp;&nbsp;<SPAN style="background-color: #ffffff;">4.14.78 version device tree which does not include pix clock in the device tree.</SPAN></SPAN></SPAN></P></BODY></HTML> Sat, 30 Nov 2019 00:18:47 GMT 1541189572 2019-11-30T00:18:47Z https://community.nxp.com/t5/i-MX-Processors/imx8mq-hdmi-does-not-work/m-p/988592#M146790 <HTML><HEAD></HEAD><BODY><P>linux kernel&nbsp;version&nbsp;Linux version 4.14.98-imx_4.14.98_2.0.0_ga+g5d6cbeafb80c.&nbsp;</P><P></P><P>the boot log about hdmi:</P><P></P><DIV style="color: #d4d4d4; background-color: #1e1e1e; font-weight: normal; font-size: 14px;"><DIV><SPAN style="background-color: #1e1e1e; color: #d4d4d4; ">root@imx8mqevk:~# dmesg | grep hdmi</SPAN></DIV><DIV><SPAN style="color: #d4d4d4;">[ 4.028982] imx-spdif sound-hdmi-arc: snd-soc-dummy-dai &lt;-&gt; 308a0000.spdif mapping ok</SPAN></DIV><DIV><SPAN style="color: #d4d4d4;">[ 4.036839] imx-spdif sound-hdmi-arc: ASoC: no DMI vendor name!</SPAN></DIV><DIV><SPAN style="color: #d4d4d4;">[ 4.108431] imx-cdnhdmi sound-hdmi: ASoC: CODEC DAI i2s-hifi not registered</SPAN></DIV><DIV><SPAN style="color: #d4d4d4;">[ 4.115468] imx-cdnhdmi sound-hdmi: snd_soc_register_card failed (-517)</SPAN></DIV><DIV><SPAN style="color: #d4d4d4;">[ 4.806502] imx-cdnhdmi sound-hdmi: ASoC: CODEC DAI i2s-hifi not registered</SPAN></DIV><DIV><SPAN style="color: #d4d4d4;">[ 4.813554] imx-cdnhdmi sound-hdmi: snd_soc_register_card failed (-517)</SPAN></DIV><DIV><SPAN style="color: #d4d4d4;">[ 4.857804] #2: imx-hdmi-arc</SPAN></DIV><DIV><SPAN style="color: #d4d4d4;">root@imx8mqevk:~# dmesg | grep dcss</SPAN></DIV><DIV><SPAN style="color: #d4d4d4;">[ 1.009618] dcss-core 32e00000.dcss: failed to get pix clock</SPAN></DIV><DIV><SPAN style="color: #d4d4d4;">[ 1.015299] dcss-core 32e00000.dcss: clocks initialization failed</SPAN></DIV><DIV><SPAN style="color: #d4d4d4;">[ 1.021413] dcss-core: probe of 32e00000.dcss failed with error -2</SPAN></DIV></DIV></BODY></HTML> Fri, 29 Nov 2019 08:49:37 GMT https://community.nxp.com/t5/i-MX-Processors/imx8mq-hdmi-does-not-work/m-p/988592#M146790 1541189572 2019-11-29T08:49:37Z https://community.nxp.com/t5/i-MX-Processors/imx8mq-hdmi-does-not-work/m-p/988593#M146791 <HTML><HEAD></HEAD><BODY><P>Solved!&nbsp;<SPAN style="color: #51626f; background-color: #ffffff;"><SPAN>&nbsp;</SPAN>4.14.98-imx_4.14.98_2.0.0_ga kernel should use&nbsp;<SPAN>&nbsp;the corresponded device tree. I used&nbsp;&nbsp;<SPAN style="background-color: #ffffff;">4.14.78 version device tree which does not include pix clock in the device tree.</SPAN></SPAN></SPAN></P></BODY></HTML> Sat, 30 Nov 2019 00:18:47 GMT https://community.nxp.com/t5/i-MX-Processors/imx8mq-hdmi-does-not-work/m-p/988593#M146791 1541189572 2019-11-30T00:18:47Z