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Ingo Thies...
Posted: Mon Nov 08, 2010 3:04 pm
 
Hi all,

according to

http://www.markshuttleworth.com/archives/551

Ubuntu will drop X11 in future in favor of the Wayland display
management system. Will gnuplot run properly with Wayland (has it been
alsready tested), and will the features of the X11 terminal in gnuplot
(like mousing etc.) be still available with Wayland?

As I understand related German articles (like [1]) many components will
be compatible, but probably there will also be many porting problems.

[1]
http://www.heise.de/newsticker/meldung/Ubuntu-will-weg-von-X11-1131824.html

Ingo
 
Pter Juhsz...
Posted: Mon Nov 08, 2010 3:35 pm
 
On Nov 8, 11:04am, Ingo Thies <ingo.th... at (no spam) gmx.de> wrote:
Quote:
Hi all,

according to

http://www.markshuttleworth.com/archives/551

Ubuntu will drop X11 in future in favor of the Wayland display
management system. Will gnuplot run properly with Wayland (has it been
alsready tested), and will the features of the X11 terminal in gnuplot
(like mousing etc.) be still available with Wayland?

As I understand related German articles (like [1]) many components will
be compatible, but probably there will also be many porting problems.

[1]http://www.heise.de/newsticker/meldung/Ubuntu-will-weg-von-X11-113182....

Ingo

As far as I can tell, this Wayland is in a very early stage of
development. Unfinished device input support, common toolkits (GTK+,
Qt) not fully ported yet, etc.

So I think it's too early to be concerned about it. If anything, they
promise compatibility with existing X applications (via an X server
running on top of the native composition layer), so gnuplot will
continue to be usable that way until a native terminal is developed
(if ever). By the way, gnuplot already has a working wxt and a mostly
working Qt terminal: if those toolkits are ported to Wayland, then no
problem, if not, it's useless anyway.

Pter Juhsz
 
sfeam...
Posted: Tue Nov 09, 2010 3:34 am
 
Ingo Thies wrote:

Quote:
Hi all,

according to

http://www.markshuttleworth.com/archives/551

Ubuntu will drop X11 in future in favor of the Wayland display
management system.

The link you quote does not say that. In fact it says the opposite:

"We’re confident we’ll be able to retain the ability to run X
applications in a compatibility mode, so this is not a transition
that needs to reset the world of desktop free software."

Quote:
Will gnuplot run properly with Wayland (has it been
alsready tested), and will the features of the X11 terminal in gnuplot
(like mousing etc.) be still available with Wayland?

I have no insight into what Ubuntu is up to, but the following information
from the Wayland FAQ, written by the author of Wayland, may be relevant:

"I'm not deluding myself that any general purpose desktop Linux distribution
will stop shipping X as we know it or as a Wayland client anytime soon.
Nor should they, there will still be X applications to run and people expect
that from a Linux desktop. What's different now is that a lot of infra-
structure has moved from the X server into the kernel (memory management,
command scheduling, mode setting) or libraries (cairo, pixman, freetype,
fontconfig, pango etc) and there is very little left that has to happen in a
central server process."

"I imagine that Wayland and X will coexist in two ways on a Linux desktop:
(1) Wayland is a graphics multiplexer for a number of X servers. [...]
(2) Further down the road we run a user session natively under Wayland with
clients written for Wayland. There will still (always) be X applications
to run, but we now run these under a root-less X server that is itself a
client of the Wayland server."

I didn't know anything about Wayland until reading your post, so thanks
for the pointer. But from the information I found on the Wayland site,
I don't think this change will be visible to applications like gnuplot.
As Péter Juhász pointed out, it may mean that the output from gnuplot's
qt or wxt terminal drivers will get to the user's screen without going
through x11 in the middle. But that isn't any different from running the
qt terminal driver on an embedded device where Qt is the native graphics
layer and no x11 layer exists at all.

One might also wonder if there will be a niche for "set terminal wayland".
But as I read it, the answer is probably "no". Wayland will sit at a lower
level than the graphics libraries (cairo, wxt, x11, aqua, gd) that gnuplot
terminal drivers talk to.


Ethan


Quote:

As I understand related German articles (like [1]) many components will
be compatible, but probably there will also be many porting problems.

[1]
http://www.heise.de/newsticker/meldung/Ubuntu-will-weg-von-X11-1131824.html

Ingo

 
 
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