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 -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/f50bcdd7-d36b-42cd-8bf3-5b323de97b28%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
