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gliverman
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Joined: 24 Dec 2006
Posts: 47
Location: Carrollton, GA

PostPosted: Thu Jan 10, 2013 8:00 pm    Post subject: x11vnc USE Flag Questions Reply with quote

By default, x11vnc does not seem to have fbcon or system-libvncserver enabled, along with a few other flags. I was wondering if anyone could tell me the pros and cons building with these flags? I have Googled but can't seem to find anything. Here is the output from my emerge. Also, this is on an old PIII laptop that does not have much RAM at all so I am looking for any optimizations I can get.
Code:
TinyTux boot # emerge -av x11vnc

These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild  N     ] x11-misc/x11vnc-0.9.13  USE="crypt jpeg ssl threads zlib -avahi -fbcon -system-libvncserver -tk -xinerama" 2,787 kB

Total: 1 package (1 new), Size of downloads: 2,787 kB

Would you like to merge these packages? [Yes/No]


Here is my make.conf just for reference:
Code:
TinyTux boot # cat /etc/portage/make.conf
CFLAGS="-O2 -march=native -fomit-frame-pointer"
CXXFLAGS="${CFLAGS}"
CHOST="i686-pc-linux-gnu"
MAKEOPTS="-j2"

GENTOO_MIRRORS="ftp://ftp.gtlib.gatech.edu/pub/gentoo http://www.gtlib.gatech.edu/pub/gentoo http://gentoo.osuosl.org/"
SYNC="rsync://rsync3.us.gentoo.org/gentoo-portage"

VIDEO_CARDS="intel i915"
INPUT_DEVICES="evdev synaptics"

LINGUAS="en"

USE="alsa bindist branding -cups dbus drm gif gnome gtk -ipv6 javascript jpeg lm_sensors mmx ntp png sse symlink systemd threads tiff truetype vim vim-syntax X"
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Kaso_da_Zmok
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Joined: 19 Aug 2004
Posts: 188
Location: Cork, Ireland

PostPosted: Thu Jan 10, 2013 10:22 pm    Post subject: nothing really Reply with quote

Code:

[ Legend : U - final flag setting for installation]
[        : I - package is installed with flag     ]
[ Colors : set, unset                             ]
 * Found these USE flags for x11-misc/x11vnc-0.9.13-r1:
 U I
 + + avahi               : Add avahi/Zeroconf support
 + + crypt               : Add support for encryption -- using mcrypt or gpg
                           where applicable
 - - fbcon               : Adds framebuffer support for the console, via the
                           kernel
 + + jpeg                : Adds JPEG image support
 + + ssl                 : Adds support for Secure Socket Layer connections
 - - system-libvncserver : Build x11vnc against the system libvncserver
                           (experimental)
 - - threads             : Adds threads support for various packages. Usually
                           pthreads
 - - tk                  : Support the simple tcl/tk -gui option
 - - xinerama            : Add support for the xinerama X11 extension, which is
                           mandatory if you work in multiple monitors setup
 + + zlib                : Adds support for zlib (de)compression
risko@e6400 ~ $
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gliverman
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Joined: 24 Dec 2006
Posts: 47
Location: Carrollton, GA

PostPosted: Fri Jan 11, 2013 12:33 pm    Post subject: Reply with quote

Thanks, but that does not really tell me too much. I had read the descriptions of each of the flags but I am not sure how to make an educated decision as the whether or not I should enable each of them.
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Kaso_da_Zmok
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Joined: 19 Aug 2004
Posts: 188
Location: Cork, Ireland

PostPosted: Fri Jan 11, 2013 3:05 pm    Post subject: Reply with quote

I think the"fbcon" enables this feature.
http://www.karlrunge.com/x11vnc/#building
Quote:
Another amusing thing one can do is use Xvfb as the X server, e.g. "xinit $HOME/.xinitrc -- /usr/X11R6/bin/Xvfb :1 -screen 0 1024x768x16" x11vnc can poll Xvfb efficiently via main memory. It's not exactly clear why one would want to do this instead of using vncserver/Xvnc, (perhaps to take advantage of an x11vnc feature, such as framebuffer scaling or built-in SSL encryption),
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