Hi Fabio,
Are you running from a bash shell under a terminal started from the XWin Server
shortcut or X Applications Menu?
Those variables are defined in my shell:
$ echo $XDG_CURRENT_DESKTOP $XDG_MENU_PREFIX $XDG_RUNTIME_DIR
X-Cygwin xwin- /run/user/######/
--
Take care. Thanks, Brian Inglis Calgary, Alberta, Canada
La perfection est atteinte Perfection is achieved
non pas lorsqu'il n'y a plus rien à ajouter not when there is no more to add
mais lorsqu'il n'y a plus rien à retirer but when there is no more to cut
-- Antoine de Saint-Exupéry
On 2023-04-27 10:15, Fabio Rossi wrote:
Hello Brians,
thanks for the suggestions. I had already installed the xorg server and all the
packages you mentioned. But nevertheless I get the errors reported in the
original email, both if I start octave from the shell or by using the XDG menu
which starts octave with the GUI.
In particular, in the second case I confirm all the opengl messages already
reported and I get the following results in the octave command line:
getenv('XDG_CURRENT_DESKTOP')
ans = X-Cygwin
getenv('XDG_MENU_PREFIX')
ans = xwin-
getenv('XDG_RUNTIME_DIR')
ans =
From the shell all of the previous variables are of course empty. With the past
versions of octave it was plotting when run from the bash.
Thanks,
Fabio
Il 27/04/2023 17:48 Brian Inglis <brian.ing...@shaw.ca> ha scritto:
Hi Fabio,
Some packages include non-GUI or native GUI interfaces that do not require
window system support.
Others may dynamically support window systems if they are installed, or have
separate executables for console or GUI, as octave does: octave and octave-cli.
If you are using octave GUI, as it is linked against X window libraries, you
need to install the X window system.
If you install xinit, that will install the X Window server xorg-server, XDG
components xdg-user-dirs, xwin-xdg-menu, X Window clients.
If you then run it via the XWin Server Start Menu shortcut, it will define
$XDG_CURRENT_DESKTOP, $XDG_MENU_PREFIX, and $XDG_RUNTIME_DIR.
That should allow you to run octave GUI and display plot windows.
--
Take care. Thanks, Brian Inglis Calgary, Alberta, Canada
La perfection est atteinte Perfection is achieved
non pas lorsqu'il n'y a plus rien à ajouter not when there is no more to add
mais lorsqu'il n'y a plus rien à retirer but when there is no more to cut
-- Antoine de Saint-Exupéry
On 2023-04-27 07:58, Fabio Rossi via Cygwin wrote:
I forgot to mention that the test machine is running Windows 10 Pro 64 bit with
a ATI FirePro 3800 graphics card. On the same machine, octave built for Windows
executes correctly the same command. I have observed the same behaviour also on
other Windows machines running Win7 or other graphic adapters.
Fabio
Il 26/04/2023 15:34 Fabio Rossi <ross...@inwind.it> ha scritto:
I have installed latest test version of octave 8.2.0-1. When I try to plot using a simple command like "plot(1,1)" I get the following errors from the command line
$ octave
QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-XXXX+user'
GNU Octave, version 8.2.0
Copyright (C) 1993-2023 The Octave Project Developers.
This is free software; see the source code for copying conditions.
There is ABSOLUTELY NO WARRANTY; not even for MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. For details, type 'warranty'.
Octave was configured for "x86_64-pc-cygwin".
Additional information about Octave is available at https://www.octave.org.
Please contribute if you find this software useful.
For more information, visit https://www.octave.org/get-involved.html
Read https://www.octave.org/bugs.html to learn how to submit bug reports.
For information about changes from previous versions, type 'news'.
octave:1> plot(1,1)
wglMakeCurrent error: 00000006
wglMakeCurrent error: 00000006
warning: opengl_renderer: Error 'invalid operation' (1282) occurred in
init_gl_context
warning: called from
__uiobject_split_args__ at line 61 column 9
uimenu at line 94 column 13
__add_default_menu__ at line 59 column 5
figure at line 97 column 5
newplot at line 120 column 10
plot at line 234 column 9
warning: opengl_renderer: Error 'invalid operation' (1282) occurred drawing
'uimenu' object
warning: called from
__uiobject_split_args__ at line 61 column 9
uimenu at line 94 column 13
__add_default_menu__ at line 59 column 5
figure at line 97 column 5
newplot at line 120 column 10
plot at line 234 column 9
warning: opengl_renderer: Error 'invalid operation' (1282) occurred drawing
'figure' object
warning: called from
__uiobject_split_args__ at line 61 column 9
uimenu at line 94 column 13
__add_default_menu__ at line 59 column 5
figure at line 97 column 5
newplot at line 120 column 10
plot at line 234 column 9
wglMakeCurrent error: 00000006
warning: opengl_renderer: Error 'invalid operation' (1282) occurred in
init_gl_context
warning: called from
__add_default_menu__ at line 165 column 3
figure at line 97 column 5
newplot at line 120 column 10
plot at line 234 column 9
warning: opengl_renderer: Error 'invalid operation' (1282) occurred drawing
'uimenu' object
warning: called from
__add_default_menu__ at line 165 column 3
figure at line 97 column 5
newplot at line 120 column 10
plot at line 234 column 9
warning: opengl_renderer: Error 'invalid operation' (1282) occurred drawing
'uimenu' object
warning: called from
__add_default_menu__ at line 165 column 3
figure at line 97 column 5
newplot at line 120 column 10
plot at line 234 column 9
warning: opengl_renderer: Error 'invalid operation' (1282) occurred drawing
'uimenu' object
warning: called from
__add_default_menu__ at line 165 column 3
figure at line 97 column 5
newplot at line 120 column 10
plot at line 234 column 9
warning: opengl_renderer: Error 'invalid operation' (1282) occurred drawing
'uitoolbar' object
warning: called from
__add_default_menu__ at line 165 column 3
figure at line 97 column 5
newplot at line 120 column 10
plot at line 234 column 9
warning: opengl_renderer: Error 'invalid operation' (1282) occurred drawing
'figure' object
warning: called from
__add_default_menu__ at line 165 column 3
figure at line 97 column 5
newplot at line 120 column 10
plot at line 234 column 9
warning: opengl_renderer: Error 'invalid operation' (1282) occurred in
init_gl_context
warning: called from
__add_default_menu__ at line 165 column 3
figure at line 97 column 5
newplot at line 120 column 10
plot at line 234 column 9
warning: opengl_renderer: Error 'invalid operation' (1282) occurred drawing
'uimenu' object
warning: called from
__add_default_menu__ at line 165 column 3
figure at line 97 column 5
newplot at line 120 column 10
plot at line 234 column 9
warning: opengl_renderer: Error 'invalid operation' (1282) occurred drawing
'uimenu' object
warning: called from
__add_default_menu__ at line 165 column 3
figure at line 97 column 5
newplot at line 120 column 10
plot at line 234 column 9
warning: opengl_renderer: Error 'invalid operation' (1282) occurred drawing
'uimenu' object
warning: called from
__add_default_menu__ at line 165 column 3
figure at line 97 column 5
newplot at line 120 column 10
plot at line 234 column 9
warning: opengl_renderer: Error 'invalid operation' (1282) occurred drawing
'uitoolbar' object
warning: called from
__add_default_menu__ at line 165 column 3
figure at line 97 column 5
newplot at line 120 column 10
plot at line 234 column 9
warning: opengl_renderer: Error 'invalid operation' (1282) occurred drawing
'figure' object
warning: called from
__add_default_menu__ at line 165 column 3
figure at line 97 column 5
newplot at line 120 column 10
plot at line 234 column 9
octave:2> wglMakeCurrent error: 00000006
warning: opengl_renderer: Error 'invalid operation' (1282) occurred in
init_gl_context
warning: opengl_renderer: Error 'invalid operation' (1282) occurred drawing
'uimenu' object
warning: opengl_renderer: Error 'invalid operation' (1282) occurred drawing
'uimenu' object
warning: opengl_renderer: Error 'invalid operation' (1282) occurred drawing
'uimenu' object
warning: opengl_renderer: Error 'invalid operation' (1282) occurred drawing
'uitoolbar' object
warning: opengl_texture::create: the opengl library in use doesn't support
images with either dimension larger than -367397472. Not rendering.
The plot window is opened but becomes unresponsive, it is impossible to close
it. The same happens if I start octave with the --gui option. The same happens
also with latest stable 6.4.0-1 version
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