Linux版本是yocto 3.10，提炼出来的linux源码，使用imx6Q sdp平台，编译通过且烧录成功，上电Linux启动，已经进入X11界面，但是将进入桌面后就黑屏了，这是什么问题：
打印信息与正常的官方的文件打印信息：有区别：
本人编译打印信息：
Starting Dropbear SSH server: dropbear.
Starting advanced power management daemon: apmd.
apmd[1930]: apmd 3.2.1 interfacing with apm driver 1.13 and APM BIOS 1.2

官方文件打印信息：
Starting Dropbear SSH server: Will output 1024 bit rsa secret key to '/etc/dropbear/dropbear_rsa_host_key'
Generating key, this may take a while...
Public key portion is:
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAAAgwCpkOzsJGz/yx/1Z/KYfiGXCmNCXcCqWANOE5MUkoreleJ3yPs/lx+pm1NWbAP55HwWqP5CnP9ynDVd+mY3+71xwHo97KGhyLCsiEOXOIOjRL5mW2w5M98W+skYaqcAbln0/1QCnb5Uw27bmG+arOhI0My5AcgWSJAW0MG0p4gbqbsx root@imx6qdlsolo
Fingerprint: md5 c8:2b:cc:23:65:ac:34:41:4c:39:8b:20:9a:4f:58:fc
dropbear.
Starting advanced power management daemon: No APM support in kernel
(failed.)