LCD4 cape

Dear all,

I connect beaglebone black with kernel version 3.8.13-bone71.1 as per link.
then i connect HDMI is working fine.

but when i disable HDMI cape in uEnv.txt file. HDMI cape is disable.
now i load BB-BONE-LCD4-01 cape then is loaded propely but on lcd shown debian login.

but GUI not came into picture.
so given below command
apt-get update
apt-get upgrade
apt-get install read-edid xserver-xorg-video-modesetting x11-xserver-utils

then i edit
vim /etc/X11/xorg.conf

Section “Monitor”
Identifier “Builtin Default Monitor”

Section “Device”
Identifier “Builtin Default fbdev Device 0”
Driver “fbdev”
Option “fbdev” “/dev/fb0”

Section “Screen”
Identifier “Builtin Default fbdev Screen 0”
Device “Builtin Default fbdev Device 0”
Monitor “Builtin Default Monitor”
DefaultDepth 16

Section “ServerLayout”
Identifier “Builtin Default Layout”
Screen “Builtin Default fbdev Screen 0”

Section “Device”
Identifier “Frame Buffer”
Driver “fbdev”

then also GUI is not came
what is mistake?
how to install dtc compiler in beaglebone blaack.