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问:LVDS屏幕uboot和kernel都没显示,只有背光 答:run load_scr; source; setenv disp_fb0_lvds1 "video=mxcfb0:dev=ldb,LDB-WXGA,if=RGB666 ldb=sin1" setenv display "${disp_fb0_lvds1}" saveenv; boot 烧录后环境变量设置 问:我这个屏的参数U-BOOT班级文件配置: .bus = -1, .addr = 0, .pixfmt = IPU_PIX_FMT_RGB666, .detect = NULL, .enable = enable_lvds, .mode = { .name = "MYZR-WSVGA", .refresh = 60, .xres = 1280, .yres = 800, .pixclock = 14507, .left_margin = 34, .right_margin = 34, .upper_margin = 3, .lower_margin = 3, .hsync_len = 60, .vsync_len = 10, .sync = FB_SYNC_EXT, .vmode = FB_VMODE_NONINTERLACED 设备树文件配置: lvds-channel@0 { fsl,data-mapping = "spwg"; fsl,data-width = <18>; status = "okay"; display-timings { native-mode = <&timing0>; timing0: hsd100pxn1 { clock-frequency = <68930000>; hactive = <1280>; vactive = <800>; hback-porch = <34>; hfront-porch = <34>; vback-porch = <3>; vfront-porch = <3>; hsync-len = <60>; vsync-len = <10>; }; }; }; 屏的参数先不改了吗? 答:http://wiki.myzr.com.cn/index.ph ... ool-v2.6_User_Guide MfgTool-MYIMX6A9-L3.0.35-Base.svn257.20181228.rar |