i.MX Processors中的主题 Framebuffer not detecting image https://community.nxp.com/t5/i-MX-Processors/Framebuffer-not-detecting-image/m-p/921514#M138538 <HTML><HEAD></HEAD><BODY><P>The command,</P><P>fb-test -f 0</P><P>generates and displays a test pattern on the screen.</P><P></P><P>But the command,</P><P>cp /home/root/test.jpg /dev/fb0</P><P>copies the test image into /dev/fb0 but fails to display anything on the screen.</P><P></P><P>How to resolve this issue?</P></BODY></HTML> Fri, 13 Sep 2019 07:33:08 GMT abhijeet_ghodga 2019-09-13T07:33:08Z Framebuffer not detecting image https://community.nxp.com/t5/i-MX-Processors/Framebuffer-not-detecting-image/m-p/921514#M138538 <HTML><HEAD></HEAD><BODY><P>The command,</P><P>fb-test -f 0</P><P>generates and displays a test pattern on the screen.</P><P></P><P>But the command,</P><P>cp /home/root/test.jpg /dev/fb0</P><P>copies the test image into /dev/fb0 but fails to display anything on the screen.</P><P></P><P>How to resolve this issue?</P></BODY></HTML> Fri, 13 Sep 2019 07:33:08 GMT https://community.nxp.com/t5/i-MX-Processors/Framebuffer-not-detecting-image/m-p/921514#M138538 abhijeet_ghodga 2019-09-13T07:33:08Z Re: Framebuffer not detecting image https://community.nxp.com/t5/i-MX-Processors/Framebuffer-not-detecting-image/m-p/921515#M138539 <HTML><HEAD></HEAD><BODY><P>Hi Abhijeet</P><P></P><P>one can redirect image directly to the framebuffer device as follows:<BR />cat image &gt; /dev/fb0</P><P><A class="link-titled" href="https://source.codeaurora.org/external/imx/imx-test/tree/test/mxc_fb_test/doc/FSL-UT-FB-003.txt?h=imx_4.14.78_1.0.0_ga" title="https://source.codeaurora.org/external/imx/imx-test/tree/test/mxc_fb_test/doc/FSL-UT-FB-003.txt?h=imx_4.14.78_1.0.0_ga">FSL-UT-FB-003.txt\doc\mxc_fb_test\test - imx-test - i.MX Driver Test Application Software</A>&nbsp;</P><P></P><P>Best regards<BR />igor<BR />-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Sat, 14 Sep 2019 09:53:58 GMT https://community.nxp.com/t5/i-MX-Processors/Framebuffer-not-detecting-image/m-p/921515#M138539 igorpadykov 2019-09-14T09:53:58Z