topic IMX8M Mini Evk: Cannot test Display in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/IMX8M-Mini-Evk-Cannot-test-Display/m-p/1041131#M153391 <HTML><HEAD></HEAD><BODY><P>Hi everyone.</P><P>I am having a imx8mm evk board and use yocto project to build linux image with BSP 4.14.98.</P><P>When i run ./autorun-fb.sh in /unit_tests/Display. I get the following error:</P><P>root@imx8mmevk:/unit_tests/Display# ls ./autorun-fb.sh</P><P>---- Running &lt; autorun-fb.sh &gt; test ----<BR />Checking for devnode: /dev/fb0<BR />autorun-fb.sh: PASS devnode found: /dev/fb0</P><P>FB Blank test<BR />Screen should be off<BR />FB Color test<BR />Setting FB to 16-bpp<BR />./autorun-fb.sh: line 35: echo: write error: Invalid argument<BR />FAIL - Unable to set bpp<BR />Setting FB to 24-bpp<BR />./autorun-fb.sh: line 35: echo: write error: Invalid argument<BR />FAIL - Unable to set bpp<BR />Setting FB to 32-bpp<BR />FB panning test<BR />./autorun-fb.sh: line 62: echo: write error: Invalid argument<BR />FAIL - Unable to set virtual size<BR />./autorun-fb.sh: line 73: echo: write error: Invalid argument<BR />FAIL - Unable to pan<BR />./autorun-fb.sh: line 73: echo: write error: Invalid argument<BR />FAIL - Unable to pan<BR />./autorun-fb.sh: line 73: echo: write error: Invalid argument<BR />FAIL - Unable to pan<BR />./autorun-fb.sh: line 73: echo: write error: Invalid argument<BR />FAIL - Unable to pan<BR />./autorun-fb.sh: line 73: echo: write error: Invalid argument<BR />FAIL - Unable to pan<BR />./autorun-fb.sh: line 73: echo: write error: Invalid argument<BR />FAIL - Unable to pan<BR />./autorun-fb.sh: line 73: echo: write error: Invalid argument<BR />FAIL - Unable to pan<BR />./autorun-fb.sh: line 73: echo: write error: Invalid argument<BR />FAIL - Unable to pan<BR />./autorun-fb.sh: line 73: echo: write error: Invalid argument</P><P>.......................................<BR />FAIL - Unable to pan<BR />./autorun-fb.sh: line 73: echo: write error: Invalid argument<BR />FAIL - Unable to pan<BR />autorun-fb.sh: Exiting FAIL<BR /><A href="mailto:root@imx8mmevk:/unit_tests/Display">root@imx8mmevk:/unit_tests/Display#</A></P><P></P><P>Can anyone help me to test display?&nbsp;</P><P>Best regards!</P></BODY></HTML> Sat, 13 Jun 2020 03:15:19 GMT hotanha03021996 2020-06-13T03:15:19Z IMX8M Mini Evk: Cannot test Display https://community.nxp.com/t5/i-MX-Processors/IMX8M-Mini-Evk-Cannot-test-Display/m-p/1041131#M153391 <HTML><HEAD></HEAD><BODY><P>Hi everyone.</P><P>I am having a imx8mm evk board and use yocto project to build linux image with BSP 4.14.98.</P><P>When i run ./autorun-fb.sh in /unit_tests/Display. I get the following error:</P><P>root@imx8mmevk:/unit_tests/Display# ls ./autorun-fb.sh</P><P>---- Running &lt; autorun-fb.sh &gt; test ----<BR />Checking for devnode: /dev/fb0<BR />autorun-fb.sh: PASS devnode found: /dev/fb0</P><P>FB Blank test<BR />Screen should be off<BR />FB Color test<BR />Setting FB to 16-bpp<BR />./autorun-fb.sh: line 35: echo: write error: Invalid argument<BR />FAIL - Unable to set bpp<BR />Setting FB to 24-bpp<BR />./autorun-fb.sh: line 35: echo: write error: Invalid argument<BR />FAIL - Unable to set bpp<BR />Setting FB to 32-bpp<BR />FB panning test<BR />./autorun-fb.sh: line 62: echo: write error: Invalid argument<BR />FAIL - Unable to set virtual size<BR />./autorun-fb.sh: line 73: echo: write error: Invalid argument<BR />FAIL - Unable to pan<BR />./autorun-fb.sh: line 73: echo: write error: Invalid argument<BR />FAIL - Unable to pan<BR />./autorun-fb.sh: line 73: echo: write error: Invalid argument<BR />FAIL - Unable to pan<BR />./autorun-fb.sh: line 73: echo: write error: Invalid argument<BR />FAIL - Unable to pan<BR />./autorun-fb.sh: line 73: echo: write error: Invalid argument<BR />FAIL - Unable to pan<BR />./autorun-fb.sh: line 73: echo: write error: Invalid argument<BR />FAIL - Unable to pan<BR />./autorun-fb.sh: line 73: echo: write error: Invalid argument<BR />FAIL - Unable to pan<BR />./autorun-fb.sh: line 73: echo: write error: Invalid argument<BR />FAIL - Unable to pan<BR />./autorun-fb.sh: line 73: echo: write error: Invalid argument</P><P>.......................................<BR />FAIL - Unable to pan<BR />./autorun-fb.sh: line 73: echo: write error: Invalid argument<BR />FAIL - Unable to pan<BR />autorun-fb.sh: Exiting FAIL<BR /><A href="mailto:root@imx8mmevk:/unit_tests/Display">root@imx8mmevk:/unit_tests/Display#</A></P><P></P><P>Can anyone help me to test display?&nbsp;</P><P>Best regards!</P></BODY></HTML> Sat, 13 Jun 2020 03:15:19 GMT https://community.nxp.com/t5/i-MX-Processors/IMX8M-Mini-Evk-Cannot-test-Display/m-p/1041131#M153391 hotanha03021996 2020-06-13T03:15:19Z Re: IMX8M Mini Evk: Cannot test Display https://community.nxp.com/t5/i-MX-Processors/IMX8M-Mini-Evk-Cannot-test-Display/m-p/1041132#M153392 <HTML><HEAD></HEAD><BODY><P>Hi Ho</P><P></P><P>autorun-fb.sh from mxc_fb_test (frame buffer test for display) supports i.MX 6 and i.MX 7,</P><P>as described in Linux Manual</P><P></P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_1.jpg"><img src="https://community.nxp.com/t5/image/serverpage/image-id/112797iD3D27FAEBB9CA250/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_1.jpg" alt="pastedImage_1.jpg" /></span></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> Mon, 15 Jun 2020 10:58:13 GMT https://community.nxp.com/t5/i-MX-Processors/IMX8M-Mini-Evk-Cannot-test-Display/m-p/1041132#M153392 igorpadykov 2020-06-15T10:58:13Z