topic android screen problem in i.MX Processors

android screen problem

andreykononov — Fri, 31 May 2019 06:39:24 GMT

i build android 9 for sabre sd board, in uboot set screen parameters

setenv bootargs console=ttymxc0,115200 init=/init video=mxcfb0:dev=ldb,1280x800M@60,if=RGB666 video=mxcfb1:off video=mxcfb2:off fbmem=28M vmalloc=400M androidboot.console=ttymxc0 androidboot.hardware=freescale

and get strange picture on screen, i get same picture when start prebuild android 8.0 from nxp site

Re: android screen problem

igorpadykov — Fri, 31 May 2019 10:16:31 GMT

Hi Andrey

based on documentation from below link seems android 9 is not supported for i.MX6Q

i.MX Software | NXP

General approach for adding support for new lcd is to change "display-timings" as in example on

i.MX6Q LVDS Wrong clock issue

NXP BSP supports for i.MX6Q Sabre SD LCD described on

https://community.nxp.com/message/331832#331832

Best regards
igor
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Re: android screen problem

andreykononov — Fri, 07 Jun 2019 13:12:59 GMT

solved by moving "primary" paraneter from lvds-channel@1 to lvds-channel@0