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Message-ID: <baf09e6c-ed50-e545-0078-8fe32d00908b@Shaw.ca>
Date: Thu, 27 Apr 2023 10:30:07 -0600
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Subject: Re: problems with octave 8.2.0-1 and plotting
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To: cygwin@cygwin.com
References: <878643096.4481236.1682516096770@mail1.libero.it>
 <774349434.10478.1682603926417@mail1.libero.it>
 <9e079b92-8214-ea8f-4f48-16e6859c9888@Shaw.ca>
 <876947632.45034.1682612153702@mail1.libero.it>
Cc: Fabio Rossi <rossi.f@inwind.it>
Organization: Inglis
In-Reply-To: <876947632.45034.1682612153702@mail1.libero.it>
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From: Brian Inglis via Cygwin <cygwin@cygwin.com>
Reply-To: Brian.Inglis@Shaw.ca
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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.inglis@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 <rossi.f@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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