i.mx6q SDB 关于hdmi显示，和官方自带文件系统无操作系统界面

pengdekai · 发表于 2015-4-8 11:16:54

本帖最后由 pengdekai 于 2015-4-8 16:11 编辑

FAE 请教一下，我现在的平台是i.mx6q SDB（MCIMX6Q-SDB）的开发板，我下载的官方编译平台为LTIB3.0.35（L3.0.35_4.1.0_130816_source.tar.gz），LTIB已经编译成功，并且通过做SD卡启动，uboot和uImage都没问题，然后我试过两个文件系统，一个是L3.0.35_4.1.0_130816_images_MX6下的rootfs.ext2.gz和官网上下载的ubuntu文件系统（oneiric.tgz），这两个系统都可以通过SD卡启动，能成功进入系统命令行。但是两个系统都没有在HDMI上有任何系统界面输出。
关于HDMI的uboot环境变量的设置为
bootargs_mmc=setenv bootargs ${bootargs} root=/dev/mmcblk1p1 rootwait rw video=mxcfb0:dev=hdmi,1024x768M@60,if=RGB24
通过dd if=/dev/urandom of=/dev/fb0命令，可以让HDMI上显示花屏，这个是否可以说明HDMI已经配置成功？？那如果配置成功的话，为什么ubuntu的界面没有出来，还是说本身没有系统界面？？

对了官方自带的L3.0.35_4.1.0_130816_images_MX6下rootfs.ext2.gz做文件系统跑起来之后，出现一大堆failed，这是什么情况？(EE) XKB: Couldn't open rules file /usr/share/X11/xkb/rules/base
(EE) XKB: No components provided for device Virtual core keyboard

arm-none-linux-gnueabi-gcc (Freescale MAD -- Linaro 2011.07 -- Built at 2011/08/10 09:20) 4.6.2 20110630 (prerelease)
root filesystem built on Fri, 16 Aug 2013 20:23:44 +0800
Freescale Semiconductor, Inc.

freescale login: unrecognised device identifier!
(EE) config/hal: NewInputDeviceRequest failed (2)
matchbox: keyboard does not appear to have a <alt> key.
matchbox: ignoring key shortcut <Alt>n=next

matchbox: keyboard does not appear to have a <alt> key.
matchbox: ignoring key shortcut <Alt>p=prev

matchbox: keyboard does not appear to have a <alt> key.
matchbox: ignoring key shortcut <Alt>c=close

matchbox: keyboard does not appear to have a <alt> key.
matchbox: ignoring key shortcut <Alt>d=desktop

matchbox: keyboard does not appear to have a <alt> key.
matchbox: ignoring key shortcut <Alt>m=!matchbox-remote -mbmenu

matchbox: keyboard does not appear to have a <alt> key.
matchbox: ignoring key shortcut <ctrl><alt>x=!xterm

matchbox: keyboard does not appear to have a <alt> key.
matchbox: ignoring key shortcut <ctrl><alt>r=!rxvt

matchbox: keyboard does not appear to have a <alt> key.
matchbox: ignoring key shortcut <ctrl><alt>e=!!gpe-calender

matchbox: keyboard does not appear to have a <alt> key.
matchbox: ignoring key shortcut <alt>Tab=next

matchbox: keyboard does not appear to have a <alt> key.
matchbox: ignoring key shortcut <alt><shift>Tab=prev

matchbox: keyboard does not appear to have a <alt> key.
matchbox: ignoring key shortcut <alt>space=taskmenu

matchbox: keyboard does not appear to have a <alt> key.
matchbox: ignoring key shortcut <alt>escape=!matchbox-remote -mbmenu

matchbox: keyboard does not appear to have a <alt> key.
matchbox: ignoring key shortcut <alt>f4=close

matchbox: Cant find a keycode for keysym 65480
matchbox: ignoring key shortcut f11=fullscreen

matchbox-desktop: loading /usr/lib/matchbox/desktop/tasks.so with args ( None )
matchbox-desktop: loading /usr/lib/matchbox/desktop/dotdesktop.so with args ( None )
user_overides is (nil)
mb-applet-menu-launcher: bonobo-browser.desktop has no icon, png or name
mb-desktop-dotdesktop: failed to open /usr/local/share/applications
mb-desktop-dotdesktop: failed to open //.applications
mb-applet-menu-launcher: failed to open /usr/local/share/applications
mb-applet-menu-launcher: failed to open //.applications
mb-applet-menu-launcher: bonobo-browser.desktop has no icon, png or name
mb-applet-menu-launcher: failed to open /usr/local/share/applications
mb-applet-menu-launcher: failed to open //.applications

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