How can I display the weather info. (graphics)on a /dev/tty7 ? (no win.manager)

PatrickNew · 10-15-2007, 03:42 PM

Okay, unfortunately fbdev is a dead end - it's a way of running X, it cannot be used without X. I think one point needs clarifying. SVGAlib and directFB are two distinct things that should not be mixed. SVGAlib is a venerable old library that handles graphics, more or less by directly interfacing with the graphics through svga standards. DirectFB is a library that makes use of the /dev/fbX devices provided by the operating system. The advantages and disadvantages are listed below.

SVGAlib
-plays to the lowest common denominator of hardware support
-does not require kernel support

DirectFB
-Allows better accelleration
-Requires no special (root) privileges

If kernel support is not a problem, I'd recommend directfb backends. Links2 provides svgalib and directfb, as does mplayer. I am uncertain, but I think zgb supports only svgalib.

frenchn00b · 10-15-2007, 03:55 PM

Quote:

Originally Posted by PatrickNew

Okay, unfortunately fbdev is a dead end - it's a way of running X, it cannot be used without X. I think one point needs clarifying. SVGAlib and directFB are two distinct things that should not be mixed. SVGAlib is a venerable old library that handles graphics, more or less by directly interfacing with the graphics through svga standards. DirectFB is a library that makes use of the /dev/fbX devices provided by the operating system. The advantages and disadvantages are listed below.

SVGAlib
-plays to the lowest common denominator of hardware support
-does not require kernel support

DirectFB
-Allows better accelleration
-Requires no special (root) privileges

If kernel support is not a problem, I'd recommend directfb backends. Links2 provides svgalib and directfb, as does mplayer. I am uncertain, but I think zgb supports only svgalib.

Thanks a lot !

I found this but for X / gtk : http://www.directfb.org/wiki/index.p...TK_on_DirectFB
sounds fast indeed directfb

(zgv works in ttyX)

I can compile easily the kernel ... to let fb there if it is the case...

digging digging ...

frenchn00b · 10-15-2007, 03:59 PM

that's wicked what he can do with the windows with directfb:

http://www.directfb.org/screenshots/...D_Windows2.png

frenchn00b · 10-15-2007, 04:01 PM

Then, let's go for it, fbdev ! ;-) ;-)

I am now compiling the tar.gz :
http://www.directfb.org/downloads/Co...B-1.1.0.tar.gz

OK

frenchn00b · 10-15-2007, 04:09 PM

Quote:

Originally Posted by frenchn00b

Then, let's go for it, fbdev ! ;-) ;-)

I am now compiling the tar.gz :
http://www.directfb.org/downloads/Co...B-1.1.0.tar.gz

OK

Ok, just compiled.
I made a package for who is interested (debian stable).
http://yellowprotoss.ye.funpic.org/deb/ => directfb

Now, getting it work .. ugrr

PatrickNew · 10-15-2007, 04:09 PM

From what you said you wanted, I still recommend just adding a cron job. I think it would be much easier to write a tiny script that kills the last instance of links2 from the pid you stashed in a file, theb launch links2 again, storing its pid in the file.

frenchn00b · 10-15-2007, 04:18 PM

I got the links vers 2.1, ./conf...bla ; make ; make install with directfb
but get this now:

Code:

links-2.1pre30$ ./links
./links: error while loading shared libraries: libdirectfb-1.1.so.0: cannot open shared object file: No such file or directory

what a fight

frenchn00b · 10-15-2007, 04:19 PM

Quote:

Originally Posted by PatrickNew

From what you said you wanted, I still recommend just adding a cron job. I think it would be much easier to write a tiny script that kills the last instance of links2 from the pid you stashed in a file, theb launch links2 again, storing its pid in the file.

Oups', sorry, I do not understand .. (I am newbie)

frenchn00b · 10-15-2007, 04:24 PM

Quote:

Originally Posted by frenchn00b

I got the links vers 2.1, ./conf...bla ; make ; make install with directfb
but get this now:

Code:

links-2.1pre30$ ./links
./links: error while loading shared libraries: libdirectfb-1.1.so.0: cannot open shared object file: No such file or directory

what a fight

pretty weird, ... looks like this :libdirectfb-1.1.so.0
is nowhere ... hmm

seeked there: http://packages.debian.org/etch/links2

frenchn00b · 10-15-2007, 04:28 PM

weird after apt-get install links,

it gives me that links:

Code:

$links --version
ELinks 0.11.1 (built on Nov 27 2006 10:22:51)

Features:
Standard, Fastmem, IPv6, gzip, bzip2, Periodic Saving, Timer, Cascading Style Sheets,
Protocol (File, FTP, HTTP, NNTP, URI rewrite, User protocols), SSL (GnuTLS),
MIME (Option system, Mailcap, Mimetypes files), LED indicators, Bookmarks,
Cookies, Form History, Global History, Scripting (Lua, Perl), Goto URL History,
Search History

OK, I got it now :

links2 -version
Links 2.1pre26

Now, permissions with directfb...
http://www.directfb.org/index.php/ma.../msg00119.html

frenchn00b · 10-15-2007, 04:41 PM

Quote:

Originally Posted by frenchn00b

pretty weird, ... looks like this :libdirectfb-1.1.so.0
is nowhere ... hmm

seeked there: http://packages.debian.org/etch/links2

found the dude !

let's ln -s ...

Code:

/usr# find /usr/local/ -iname "*directfb-1.1*"
/usr/local/share/directfb-1.1.0
/usr/local/lib/libdirectfb-1.1.so.0.0.0
/usr/local/lib/libdirectfb-1.1.so.0
/usr/local/lib/directfb-1.1-0

frenchn00b · 10-15-2007, 04:47 PM

beware if you compile the links .tar.gz you've to put /usr/local stuff in appropriate debian place locations

/usr/local/bin/links is my just compiled links last stable versino

but still no directfb ...

pff
done for today

PatrickNew · 10-15-2007, 04:48 PM

Try a script like this, run as root:

Code:

#!/bin/sh
kill `cat /tmp/weatherpid`
rm ~/.links2/socket
echo $! > /tmp/weatherpid
links2 -g www.weather.whatever

Have cron run this script every time you want to refresh the display, say every 1/2 hour or whatever. The second line takes care of a socket that's not being cleaned up since we kill links2, instead of letting it clean itself up.

To any gurus, how do you/can you instruct cron to run this on a specific tty.

It may be a less techincal solution, but you can always just run it as root and use control-r to refresh. Could save you some trouble.

frenchn00b · 10-15-2007, 04:51 PM

I just found that interesting ... http://www.directfb.org/wiki/index.php/XDirectFB:About

frenchn00b · 10-15-2007, 04:53 PM

Quote:

Originally Posted by PatrickNew

Try a script like this, run as root:

Code:

#!/bin/sh
kill `cat /tmp/weatherpid`
rm ~/.links2/socket
echo $! > /tmp/weatherpid
links2 -g www.weather.whatever

Have cron run this script every time you want to refresh the display, say every 1/2 hour or whatever. The second line takes care of a socket that's not being cleaned up since we kill links2, instead of letting it clean itself up.

To any gurus, how do you/can you instruct cron to run this on a specific tty.

It may be a less techincal solution, but you can always just run it as root and use control-r to refresh. Could save you some trouble.

thank you... I'll try that too in meanwhile as alternative of no solution to run links2 -g ... thnkx