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Common Problems and Solutions

Robert Christensen edited this page Mar 5, 2014 · 9 revisions

This page is meant to be a comprehensive list of problems and their fixes that can arise anywhere in cmdr from the source code to any problems with any dependencies.

[ERROR] EXCEPTION: Could not connect to server 127.0.0.1:5672

This is the port that rabbitmq-server runs on. Why this error appears is still not certain, but it prevents rabbitmq-server from running. To fix, delete the folder /var/lib/rabbitmq/mnesia and restart rabbitmq-server (sudo /etc/init.d/rabbitmq-server restart). You can then restart cmdr.

Problems with evtouch and Ubuntu 10.04

X.Org X Server 1.7.6
Release Date: 2010-03-17
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.24-27-server x86_64 Ubuntu
Current Operating System: Linux roomtrol-brent 2.6.32-24-server #38-Ubuntu SMP Mon Jul 5 10:29:32 UTC 2010 x86_64
Kernel command line: BOOT_IMAGE=/vmlinuz-2.6.32-24-server root=/dev/mapper/roomtrol--brent-root ro quiet
Build Date: 16 June 2010  09:34:29AM
xorg-server 2:1.7.6-2ubuntu7.2 (For technical support please see http://www.ubuntu.com/support) 
Current version of pixman: 0.16.4
	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Fri Aug 27 12:35:06 2010
(==) Using config file: "/etc/X11/xorg.conf"
(==) Using config directory: "/usr/lib/X11/xorg.conf.d"
State: S_UNTOUCHED	Action: No Action		Button: 0
State: S_TOUCHED	Action: No Action		Button: 0
State: S_LONGTOUCHED	Action: down		Button: 1
State: S_MOVING	Action: No Action		Button: 0
State: S_MAYBETAPPED	Action: click		Button: 1
State: S_ONEANDAHALFTAP	Action: down		Button: 3
State: S_UNTOUCHED	Action: No Action		Button: 0
State: S_TOUCHED	Action: No Action		Button: 0
State: S_LONGTOUCHED	Action: down		Button: 1
State: S_MOVING	Action: No Action		Button: 0
State: S_MAYBETAPPED	Action: click		Button: 1
State: S_ONEANDAHALFTAP	Action: down		Button: 3
(EE) ioctl EVIOCGNAME failed: Inappropriate ioctl for device
Unable to query/initialize EVTouch hardware.
[dix] couldn't enable device 13
(EE) Couldn't init device "e2i Technology, Inc. USB Touchpanel"

If you run into problems getting Xorg to start up and see an error similar to the one above it may have something to do with evtouch being installed. In /usr/lib/X11/xorg.conf.d/ there are a few different configuration files. If there is a evtouch one, probably named 10-evtouch.conf rename it or remove it. For example, put it in a bak/ directory in that same location. This was preventing Xorg from working properly even with the evdev driver setting in Xorg.conf. It seemed the Xorg somewhere used this 10-evtouch.conf configuration file, which was missing a MatchDevicePath directive which threw the (EE) ioctl EVIOCGNAME failed: Inappropriate ioctl for device error. This blog was helpful in troubleshooting: http://www.viitalat.net/index.php/htpc/2010/07/15/lg-1730sf-on-ubuntu-10-04