Matrix Vision mvBlueLYNX-X, Technical Manual, Page: 95 / 236

If you are unsure whether all write buffers have been written to a storage device or whether your
application is flushing buffers correctly please examine the number of dirty memory buffers in use like
this:
root@mvblx:~# cat /proc/meminfo | grep Dirty
Dirty: 0 kB
If this value is greater than
0 kB
then it is necessary to issue a
sync
command or to wait for a
sufficient time (usually > 30 seconds!) before removing power, otherwise data loss is certain.
A
reboot
,
halt
or
shutdown
command implies a
sync
command.
umount
of an external file system (e.g. USB device) will flush data for that device automatically.
11.7 X11
By default
, the X window systems a.k.a. X-server is activated. To deactivate the server,
open console and 1.
type in
chmod -x /etc/init.d/psplash
chmod -x /etc/init.d/gpe-dm
2.
Reboot afterwards. 3.
To turn the X-server back on again by default
chmod +x /etc/init.d/psplash
chmod +x /etc/init.d/gpe-dm
Now reboot.
11.7.1 X11Forwarding
X window systems like Enlightenment support X windows forwarding to access the camera's desktop via
Linux or Windows PC's.
By default , the X11Forwarding is disabled.
To use this functionality, you have to
Edit the file
/etc/ssh/sshd_config
on the mvBlueLYNX-X. 1.
Change the line
X11Forwarding no
to read
X11Forwarding yes
2.
Now create an empty authority file:
touch /home/root/.Xauthority
3.
Restart the mvBlueLYNX-X and 4.
then login via
ssh
like this: (substituting the camera's IP address as appropriate):
ssh -X root@192.168.65.55
If you use this form then the data will be compressed using a fast Blowfish algorithm which might be
useful on a narrow bandwidth link:
ssh -X -c blowfish root@192.168.65.55
5.
mvBlueLYNX-X Technical Manual
MATRIX VISION GmbH 22 April 2016 Version - 1.49 85