Part Number: AM3358
Hi,
I am working with a Beaglebone Black with Debian Jessie.
I am trying to interface with an LG 19M38H - B LCD display through its HDMI port.
1) When I am running the command
sudo apt-get install read-edid xserver-xorg-video-fbdev xserver-xorg-video-modesetting x11-xserver-utils
I am getting the following message
root@localhost:~# sudo apt-get install read-edid xserver-xorg-video-fbdev xserver-xorg-video-modesetting x11-xserver-utils
Reading package lists... Done
Building dependency tree
Reading state information... Done
read-edid is already the newest version.
x11-xserver-utils is already the newest version.
xserver-xorg-video-fbdev is already the newest version.
xserver-xorg-video-modesetting is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 204 not upgraded.
2) Then I tried xrandr. It is giving the following message
root@localhost:~# xrandr
Can't open display
3) I did the following to solve the issue, after exploring in forums
a)defining environment variable DISPLAY
root@localhost:~# export DISPLAY=:0.0
root@localhost:~# xrandr
Can't open display :0.0
root@localhost:~#
b)defining environment variable XAUTHORITY
root@localhost:~# export XAUTHORITY=/root/.Xauthority
root@localhost:~# xrandr
No protocol specified
Can't open display :0.0
root@localhost:~#
c) used the command xhost local:root
root@localhost:~# xhost local:root
No protocol specified
xhost: unable to open display ":0.0"
root@localhost:~# xrandr
Can't open display :0.0
d) used the command xhost +
root@localhost:~# xhost +
xhost: unable to open display ":0.0"
root@localhost:~# xrandr
No protocol specified
Can't open display :0.0
e) Also I changed the host name from beaglebone black to localhost to solve the issue.
But nothing is working. Thanks in advance for the help.
Thanks and Regards,
Sajeevan.K
