Log in over SSH with X11 forwarding and use a screenshot utility. I just
tested this locally and it worked. import is from imagemagick.
$ ssh -Y localhost
$ echo $DISPLAY
localhost:10.0
$ import -window root screenshot.png
On 10/23/2014 07:15 PM, Dan wrote:
Long time listener, first time post-er. :)
You could just try to cat the framebuffer to a raw file and run that
thru imagemagick (or photoshop) to see what's going on.
cat /dev/fb0 > output.raw
Of course, if you're doing things thru omxplayer or something else
like that, perhaps the framebuffer will not have anything interesting
in it. (just tried that here and got a black image).
...hope that's a little helpful to you!
Here's a reference that may be helpful (see the last post):
http://www.cnx-software.com/2010/07/18/how-to-do-a-framebuffer-screenshot/
--dan
On Thursday, October 23, 2014 7:41:39 AM UTC-5, farnsaw wrote:
Oooh, just found a different article on VNC for the Pi that looks
helpful. I'll try it later today and let you know what I find.
More as it happens...
Andy
On Thu, Oct 23, 2014 at 8:17 AM, Andrew Farnsworth
<[email protected] <javascript:>> wrote:
I did try VNC at one point and found that it would start and
run showing me a desktop but not what was on the active
display. I am not sure if it was misconfigured or if I was
doing something wrong. I am running chromium in "app" mode
though I doubt this would have any real affect on it.
More as it happens...
Andy Farnsworth
On Thu, Oct 23, 2014 at 8:06 AM, Gibson Prichard
<[email protected] <javascript:>> wrote:
Is VNC not an option for the Pi?
On Thursday, October 23, 2014, Andrew Farnsworth
<[email protected] <javascript:>> wrote:
I have a Raspberry Pi running as a controller for a
dashboard and I have heard reports that that it is not
displaying correctly... the problem is that the
dashboard is 500 miles away so I need a way to
remotely take a screenshot of what is displayed so I
can download it and see the issue. Alternatively, a
way to watch live what the screen is showing (aka
screen sharing) would be helpful too. I have found
several ways of displaying an X windows screen on my
local computer but not one that attaches to an already
running display.
Any suggestions?
More as it happens...
Andy Farnsworth
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