Hi I have a Beaglebone Black running Angstrom 2013.06.20 with an LCD3 cape, on the first day I was able to get a display up but the screen was glitchy however after an update to the latest distribution all was functioning well. However, an issue which I still appear to have is one of an incorrect resolution/display whenever a desktop environment is started i.e. gdm/xfce. Initially gdm would load fine however windows would be too big for the screen etc. As a temporary workaround I used a VNC connection to the board with the cape removed.
I’ve tried many things including installing xfce4 using opkg to install lxdm and packagegroup-xfce-base, however the Login screen appears too large with only ‘Log’ showing. Disabling gdm/xfce shows the Angstrom logo in correct proportion and also cross-compiling qt-applications and using the qt4-embeded libraries with gdm.service disabled had no trouble displaying applications in the correct resolution.
Any insight would be much appreciated thank you!
I am very new to this so please be gentle! I have pasted in some session outputs below:
xrandr returns the following:
root@beaglebone:~# xrandr
Can’t open display
root@beaglebone:~# export DISPLAY=:0.0
root@beaglebone:~# xrandr
Screen 0: minimum 320 x 200, current 320 x 240, maximum 2048 x 2048
LVDS-0 connected 320x240+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
320x240 64.3*+
Xorg.conf:
root@beaglebone:/etc/X11# more xorg.conf
Section “Module”
Load “extmod”
Load “dbe”
Load “glx”
Load “freetype”
Load “type1”
Load “record”
Load “dri”
EndSection
Section “Monitor”
Identifier “Builtin Default Monitor”
EndSection
Section “Device”
Identifier “Builtin Default fbdev Device 0”
Driver “modesetting”
EndSection
Section “Screen”
Identifier “Builtin Default fbdev Screen 0”
Device “Builtin Default fbdev Device 0”
Monitor “Builtin Default Monitor”
DefaultDepth 16
EndSection
Section “ServerLayout”
Identifier “Builtin Default Layout”
Screen “Builtin Default fbdev Screen 0”
EndSection
Xorg.conf.log (Not sure why 5 different ones):
root@beaglebone:/var/log# more Xorg.5.log
[1792002.287]
X.Org X Server 1.11.2
Release Date: 2011-11-04
[1792002.287] X Protocol Version 11, Revision 0
[1792002.287] Build Operating System: Linux 3.9.0 x86_64
[1792002.287] Current Operating System: Linux beaglebone 3.8.13 #1 SMP Tue Jun 25 08
:17:15 EDT 2013 armv7l
[1792002.287] Kernel command line: console=ttyO0,115200n8 quiet drm.debug=7 root=/de
v/mmcblk0p2 ro rootfstype=ext4 rootwait
[1792002.288] Build Date: 20 May 2013 01:08:55PM
[1792002.288]
[1792002.288] Current version of pixman: 0.27.2
[1792002.290] Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
[1792002.290] Markers: (–) probed, () from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[1792002.291] (==) Log file: “/var/log/Xorg.5.log”, Time: Sat Jan 1 00:00:07 2000
[1792002.292] (==) Using config file: “/etc/X11/xorg.conf”
[1792002.294] (==) Using system config directory “/usr/share/X11/xorg.conf.d”
[1792002.295] (==) ServerLayout “Builtin Default Layout”
[1792002.295] () |–>Screen “Builtin Default fbdev Screen 0” (0)
[1792002.295] () | |–>Monitor “Builtin Default Monitor”
[1792002.298] () | |–>Device “Builtin Default fbdev Device 0”
[1792002.298] (==) Automatically adding devices
[1792002.298] (==) Automatically enabling devices
[1792002.298] (WW) The directory “/usr/share/fonts/X11/TTF/” does not exist.
[1792002.298] Entry deleted from font path.
[1792002.298] (WW) The directory “/usr/share/fonts/X11/OTF/” does not exist.
[1792002.298] Entry deleted from font path.
[1792002.299] (WW) The directory “/usr/share/fonts/X11/Type1/” does not exist.
[1792002.299] Entry deleted from font path.
[1792002.299] (==) FontPath set to:
/usr/share/fonts/X11/misc/,
/usr/share/fonts/X11/100dpi/,
/usr/share/fonts/X11/75dpi/
[1792002.299] (==) ModulePath set to “/usr/lib/xorg/modules”
[1792002.299] (II) The server relies on udev to provide the list of input devices.
If no devices become available, reconfigure udev or disable AutoAddDevices.
[1792002.299] (II) Loader magic: 0x17b950
[1792002.299] (II) Module ABI versions:
[1792002.299] X.Org ANSI C Emulation: 0.4
[1792002.299] X.Org Video Driver: 11.0
[1792002.299] X.Org XInput driver : 13.0
[1792002.299] X.Org Server Extension : 6.0
[1792002.299] (II) “extmod” will be loaded. This was enabled by default and also spe
cified in the config file.
[1792002.302] (II) “dbe” will be loaded. This was enabled by default and also specif
ied in the config file.
[1792002.302] (II) LoadModule: “extmod”
[1792002.303] (WW) Warning, couldn’t open module extmod
[1792002.303] (II) UnloadModule: “extmod”
[1792002.303] (II) Unloading extmod
[1792002.303] (EE) Failed to load module “extmod” (module does not exist, 0)
[1792002.305] (II) LoadModule: “dbe”
[1792002.306] (WW) Warning, couldn’t open module dbe
[1792002.306] (II) UnloadModule: “dbe”
[1792002.306] (II) Unloading dbe
[1792002.306] (EE) Failed to load module “dbe” (module does not exist, 0)
[1792002.307] (II) LoadModule: “glx”
[1792002.307] (WW) Warning, couldn’t open module glx
[1792002.307] (II) UnloadModule: “glx”
[1792002.307] (II) Unloading glx
[1792002.307] (EE) Failed to load module “glx” (module does not exist, 0)
[1792002.307] (II) LoadModule: “record”
[1792002.310] (WW) Warning, couldn’t open module record
[1792002.310] (II) UnloadModule: “record”
[1792002.310] (II) Unloading record
[1792002.310] (EE) Failed to load module “record” (module does not exist, 0)
[1792002.310] (II) LoadModule: “dri”
[1792002.311] (WW) Warning, couldn’t open module dri
[1792002.311] (II) UnloadModule: “dri”
[1792002.311] (II) Unloading dri
[1792002.311] (EE) Failed to load module “dri” (module does not exist, 0)
[1792002.311] (II) LoadModule: “fbdev”
[1792002.314] (WW) Warning, couldn’t open module fbdev
[1792002.314] (II) UnloadModule: “fbdev”
[1792002.314] (II) Unloading fbdev
[1792002.314] (EE) Failed to load module “fbdev” (module does not exist, 0)
[1792002.314] (EE) No drivers available.
[1792002.314]
Fatal server error:
[1792002.314] no screens found
[1792002.314]
Please consult the The X.Org Foundation support
at http://wiki.x.org
for help.
[1792002.314] Please also check the log file at “/var/log/Xorg.5.log” for additional
information.
[1792002.314]
[1792002.315] Server terminated with error (1). Closing log file.
Finally, attempting to read EDID over SSH connection:
root@beaglebone:/sys/class/drm# ls
card0 card0-LVDS-1 controlD64 version
root@beaglebone:/sys/class/drm# cd card0
root@beaglebone:/sys/class/drm/card0# ls
card0-LVDS-1 dev device power subsystem uevent
root@beaglebone:/sys/class/drm/card0# cd card0-LVDS-1/
root@beaglebone:/sys/class/drm/card0/card0-LVDS-1# ls
device dpms edid enabled modes power status subsystem uevent
root@beaglebone:/sys/class/drm/card0/card0-LVDS-1# parse-edid edid
parse-edid: parse-edid version 2.0.0
parse-edid: IO error reading EDID