i.MX ProcessorsのトピックNo Display on LVDS https://community.nxp.com/t5/i-MX-Processors/No-Display-on-LVDS/m-p/1296835#M175927 <P>Hi,</P><P>&nbsp; &nbsp; &nbsp;I'm working on IM8M MINI EVK Linux platform, we are working on integration of panasys LVDS display and we are using&nbsp;SN65DSI83 as an bridge converter.</P><P>I 'have applied below patch at the directory kernel-sourcr/.../git/drivers/gpu/drm/bridge.</P><P>and i have updated in my device tree file&nbsp;<SPAN>build/tmp/work-shared/imx8qmevk/kernel-source/arch/arm64/boot/dts/freescale/imx8mm-evk.dts as below</SPAN></P><DIV>&amp;lcdif{</DIV><DIV>&nbsp;max-res&nbsp;=&nbsp;&lt;1280&gt;,&nbsp;&lt;1024&gt;;</DIV><DIV>&nbsp;status&nbsp;=&nbsp;"okay";</DIV><DIV>};</DIV><DIV>&nbsp;</DIV><DIV>&amp;mipi_dsi&nbsp;{</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp;status&nbsp;=&nbsp;"okay";</DIV><DIV>&nbsp;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; port@1&nbsp;{</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; dsim_to_sn65dsi8:&nbsp;endpoint&nbsp;{</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; remote-endpoint&nbsp;=&nbsp;&lt;&amp;sn65dsi83_in&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; };</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp;};</DIV><DIV>};</DIV><DIV>&nbsp;</DIV><DIV>&amp;i2c2&nbsp;{</DIV><DIV>&nbsp; &nbsp; clock-frequency&nbsp;=&nbsp;&lt;100000&gt;;</DIV><DIV>&nbsp; &nbsp; pinctrl-names&nbsp;=&nbsp;"default";</DIV><DIV>&nbsp; &nbsp; status&nbsp;=&nbsp;"okay";</DIV><DIV>&nbsp;</DIV><DIV>&nbsp; &nbsp; lvds_bridge:&nbsp;sn65dsi83@2c&nbsp;{</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; compatible&nbsp;=&nbsp;"ti,sn65dsi83";</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp;reg&nbsp;=&nbsp;&lt;0x2c&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; ti,dsi-lanes&nbsp;=&nbsp;&lt;4&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; ti,lvds-format&nbsp;=&nbsp;&lt;2&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; ti,lvds-bpp&nbsp;=&nbsp;&lt;24&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; ti,width-mm&nbsp;=&nbsp;&lt;376&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; ti,height-mm&nbsp;=&nbsp;&lt;301&gt;;</DIV><DIV>&nbsp;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; enable-gpios&nbsp;=&nbsp;&lt;&amp;gpio1&nbsp;14&nbsp;&nbsp;GPIO_ACTIVE_HIGH&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; pinctrl-names&nbsp;=&nbsp;"default";</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; pinctrl-0&nbsp;=&nbsp;&lt;&amp;pinctrl_dsi_lvds_bridge&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; status&nbsp;=&nbsp;"okay";</DIV><DIV>&nbsp;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp;display-timings&nbsp;{</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; lvds&nbsp;{</DIV><DIV>/*</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; clock-frequency&nbsp;=&nbsp;&lt;90000000&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;hactive&nbsp;=&nbsp;&lt;1280&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; hsync-len&nbsp;=&nbsp;&lt;54&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; hback-porch&nbsp;=&nbsp;&lt;75&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; hfront-porch&nbsp;=&nbsp;&lt;75&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; vactive&nbsp;=&nbsp;&lt;1024&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; vsync-len&nbsp;=&nbsp;&lt;10&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; vback-porch&nbsp;=&nbsp;&lt;10&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; vfront-porch&nbsp;=&nbsp;&lt;22&gt;;</DIV><DIV>&nbsp;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; vsync-active&nbsp;=&nbsp;&lt;0&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; hsync-active&nbsp;=&lt;0&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; de-active&nbsp;=&lt;0&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; pixelclk-active&nbsp;=&lt;0&gt;;</DIV><DIV>*/</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;clock-frequency&nbsp;=&nbsp;&lt;108000000&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;hactive&nbsp;=&nbsp;&lt;1280&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;hsync-len&nbsp;=&nbsp;&lt;28&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;hback-porch&nbsp;=&nbsp;&lt;200&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;hfront-porch&nbsp;=&nbsp;&lt;180&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;vactive&nbsp;=&nbsp;&lt;1023&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;vsync-len&nbsp;=&nbsp;&lt;7&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;vback-porch&nbsp;=&nbsp;&lt;30&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;vfront-porch&nbsp;=&nbsp;&lt;5&gt;;</DIV><DIV>&nbsp;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;vsync-active&nbsp;=&nbsp;&lt;0&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;hsync-active&nbsp;=&lt;0&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;de-active&nbsp;=&lt;0&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;pixelclk-active&nbsp;=&lt;0&gt;;</DIV><DIV>&nbsp;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;};</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; };</DIV><DIV>&nbsp;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; port&nbsp;{</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;sn65dsi83_in:&nbsp;endpoint&nbsp;{</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; remote-endpoint&nbsp;=&nbsp;&lt;&amp;dsim_to_sn65dsi8&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;};</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; };</DIV><DIV>&nbsp; &nbsp; };</DIV><DIV>&nbsp;</DIV><DIV>};</DIV><DIV>after compiling and deploying the kernel using&nbsp;<P>bitbake -c compile -f linux-imx and bitbake -c deploy -f linux-imx then I have built entire image using bitbake imx-image-full. I cannot see any display on the LVDS ,can you help me where i was struck.</P>&nbsp;</DIV> Wed, 23 Jun 2021 11:28:04 GMT VinithNama 2021-06-23T11:28:04Z No Display on LVDS https://community.nxp.com/t5/i-MX-Processors/No-Display-on-LVDS/m-p/1296835#M175927 <P>Hi,</P><P>&nbsp; &nbsp; &nbsp;I'm working on IM8M MINI EVK Linux platform, we are working on integration of panasys LVDS display and we are using&nbsp;SN65DSI83 as an bridge converter.</P><P>I 'have applied below patch at the directory kernel-sourcr/.../git/drivers/gpu/drm/bridge.</P><P>and i have updated in my device tree file&nbsp;<SPAN>build/tmp/work-shared/imx8qmevk/kernel-source/arch/arm64/boot/dts/freescale/imx8mm-evk.dts as below</SPAN></P><DIV>&amp;lcdif{</DIV><DIV>&nbsp;max-res&nbsp;=&nbsp;&lt;1280&gt;,&nbsp;&lt;1024&gt;;</DIV><DIV>&nbsp;status&nbsp;=&nbsp;"okay";</DIV><DIV>};</DIV><DIV>&nbsp;</DIV><DIV>&amp;mipi_dsi&nbsp;{</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp;status&nbsp;=&nbsp;"okay";</DIV><DIV>&nbsp;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; port@1&nbsp;{</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; dsim_to_sn65dsi8:&nbsp;endpoint&nbsp;{</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; remote-endpoint&nbsp;=&nbsp;&lt;&amp;sn65dsi83_in&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; };</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp;};</DIV><DIV>};</DIV><DIV>&nbsp;</DIV><DIV>&amp;i2c2&nbsp;{</DIV><DIV>&nbsp; &nbsp; clock-frequency&nbsp;=&nbsp;&lt;100000&gt;;</DIV><DIV>&nbsp; &nbsp; pinctrl-names&nbsp;=&nbsp;"default";</DIV><DIV>&nbsp; &nbsp; status&nbsp;=&nbsp;"okay";</DIV><DIV>&nbsp;</DIV><DIV>&nbsp; &nbsp; lvds_bridge:&nbsp;sn65dsi83@2c&nbsp;{</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; compatible&nbsp;=&nbsp;"ti,sn65dsi83";</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp;reg&nbsp;=&nbsp;&lt;0x2c&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; ti,dsi-lanes&nbsp;=&nbsp;&lt;4&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; ti,lvds-format&nbsp;=&nbsp;&lt;2&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; ti,lvds-bpp&nbsp;=&nbsp;&lt;24&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; ti,width-mm&nbsp;=&nbsp;&lt;376&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; ti,height-mm&nbsp;=&nbsp;&lt;301&gt;;</DIV><DIV>&nbsp;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; enable-gpios&nbsp;=&nbsp;&lt;&amp;gpio1&nbsp;14&nbsp;&nbsp;GPIO_ACTIVE_HIGH&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; pinctrl-names&nbsp;=&nbsp;"default";</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; pinctrl-0&nbsp;=&nbsp;&lt;&amp;pinctrl_dsi_lvds_bridge&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; status&nbsp;=&nbsp;"okay";</DIV><DIV>&nbsp;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp;display-timings&nbsp;{</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; lvds&nbsp;{</DIV><DIV>/*</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; clock-frequency&nbsp;=&nbsp;&lt;90000000&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;hactive&nbsp;=&nbsp;&lt;1280&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; hsync-len&nbsp;=&nbsp;&lt;54&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; hback-porch&nbsp;=&nbsp;&lt;75&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; hfront-porch&nbsp;=&nbsp;&lt;75&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; vactive&nbsp;=&nbsp;&lt;1024&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; vsync-len&nbsp;=&nbsp;&lt;10&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; vback-porch&nbsp;=&nbsp;&lt;10&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; vfront-porch&nbsp;=&nbsp;&lt;22&gt;;</DIV><DIV>&nbsp;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; vsync-active&nbsp;=&nbsp;&lt;0&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; hsync-active&nbsp;=&lt;0&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; de-active&nbsp;=&lt;0&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; pixelclk-active&nbsp;=&lt;0&gt;;</DIV><DIV>*/</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;clock-frequency&nbsp;=&nbsp;&lt;108000000&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;hactive&nbsp;=&nbsp;&lt;1280&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;hsync-len&nbsp;=&nbsp;&lt;28&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;hback-porch&nbsp;=&nbsp;&lt;200&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;hfront-porch&nbsp;=&nbsp;&lt;180&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;vactive&nbsp;=&nbsp;&lt;1023&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;vsync-len&nbsp;=&nbsp;&lt;7&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;vback-porch&nbsp;=&nbsp;&lt;30&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;vfront-porch&nbsp;=&nbsp;&lt;5&gt;;</DIV><DIV>&nbsp;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;vsync-active&nbsp;=&nbsp;&lt;0&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;hsync-active&nbsp;=&lt;0&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;de-active&nbsp;=&lt;0&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;pixelclk-active&nbsp;=&lt;0&gt;;</DIV><DIV>&nbsp;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;};</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; };</DIV><DIV>&nbsp;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; port&nbsp;{</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;sn65dsi83_in:&nbsp;endpoint&nbsp;{</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; remote-endpoint&nbsp;=&nbsp;&lt;&amp;dsim_to_sn65dsi8&gt;;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;};</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; };</DIV><DIV>&nbsp; &nbsp; };</DIV><DIV>&nbsp;</DIV><DIV>};</DIV><DIV>after compiling and deploying the kernel using&nbsp;<P>bitbake -c compile -f linux-imx and bitbake -c deploy -f linux-imx then I have built entire image using bitbake imx-image-full. I cannot see any display on the LVDS ,can you help me where i was struck.</P>&nbsp;</DIV> Wed, 23 Jun 2021 11:28:04 GMT https://community.nxp.com/t5/i-MX-Processors/No-Display-on-LVDS/m-p/1296835#M175927 VinithNama 2021-06-23T11:28:04Z Re: No Display on LVDS https://community.nxp.com/t5/i-MX-Processors/No-Display-on-LVDS/m-p/1299535#M176167 <P>Hi&nbsp;<a href="https://community.nxp.com/t5/user/viewprofilepage/user-id/184278">@VinithNama</a>&nbsp;</P> <P>&nbsp;</P> <P>PLS share your log</P> Tue, 29 Jun 2021 08:07:44 GMT https://community.nxp.com/t5/i-MX-Processors/No-Display-on-LVDS/m-p/1299535#M176167 Zhiming_Liu 2021-06-29T08:07:44Z Re: No Display on LVDS https://community.nxp.com/t5/i-MX-Processors/No-Display-on-LVDS/m-p/1299583#M176174 <P>Hi Sir,</P><P>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Below image shows the log of my uboot.</P><P>&nbsp;</P><P> </P> Tue, 29 Jun 2021 09:21:19 GMT https://community.nxp.com/t5/i-MX-Processors/No-Display-on-LVDS/m-p/1299583#M176174 VinithNama 2021-06-29T09:21:19Z Re: No Display on LVDS https://community.nxp.com/t5/i-MX-Processors/No-Display-on-LVDS/m-p/1299653#M176180 <P>Hi&nbsp;<a href="https://community.nxp.com/t5/user/viewprofilepage/user-id/184278">@VinithNama</a>&nbsp;</P> <P>&nbsp;</P> <P>Can you confirm that your hardware is working fine?</P> <P>Try to use&nbsp;Oscilloscope capture the i2c wave.</P> Tue, 29 Jun 2021 11:12:50 GMT https://community.nxp.com/t5/i-MX-Processors/No-Display-on-LVDS/m-p/1299653#M176180 Zhiming_Liu 2021-06-29T11:12:50Z Re: No Display on LVDS https://community.nxp.com/t5/i-MX-Processors/No-Display-on-LVDS/m-p/1329139#M179045 <P>Hi Sir,</P><P>&nbsp;I can able to read the i2c registers and I'm getting the reset value my i2c is working but I'm not able to get any signal in oscilloscope.</P> Wed, 25 Aug 2021 05:59:47 GMT https://community.nxp.com/t5/i-MX-Processors/No-Display-on-LVDS/m-p/1329139#M179045 VinithNama 2021-08-25T05:59:47Z