cygwin octave x11

cygwin octave x11

[Chillosaurus]

I try to run octave in cygwin, which works fine, but if I want to draw a plot
it doesn't open a new window.
I'm a beginner with cygwin and unix-environments and was not able to find an
understandable solution.
Starting octave i get the following error:
warning: X11 DISPLAY environment variable not set
Typing "startx" I get the following:
xauth: (stdin):1:  bad "add" command line
[dix] Could not init font path element /usr/share/fonts/OTF/, removing from
list 
The XKEYBOARD keymap compiler (xkbcomp) reports:
> Warning:          Type "ONE_LEVEL" has 1 levels, but <RALT> has 2 symbols
>                   Ignoring extra symbols
Errors from xkbcomp are not fatal to the X server
winBlockHandler - pthread_mutex_unlock()
Invalid MIT-MAGIC-COOKIE-1 keyInvalid MIT-MAGIC-COOKIE-1 keyInvalid
MIT-MAGIC-COOKIE-1 keyInvalid MIT-MAGIC-COOKIE-1 key..

I had this error message starting matlab, can that be fixed, is this the
same problem or a different one?
Warning: No display specified.  You will not be able to display graphics on
the screen.

thanks a lot
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Re: cygwin octave x11

[marco atzeri]

On 5/17/2012 3:59 PM, Chillosaurus wrote:
>
> I try to run octave in cygwin, which works fine, but if I want to draw a plot
> it doesn't open a new window.
> I'm a beginner with cygwin and unix-environments and was not able to find an
> understandable solution.
> Starting octave i get the following error:
> warning: X11 DISPLAY environment variable not set
> Typing "startx" I get the following:
> xauth: (stdin):1:  bad "add" command line
> [dix] Could not init font path element /usr/share/fonts/OTF/, removing from
> list
> The XKEYBOARD keymap compiler (xkbcomp) reports:
>> Warning:          Type "ONE_LEVEL" has 1 levels, but<RALT>  has 2 symbols
>>                    Ignoring extra symbols
> Errors from xkbcomp are not fatal to the X server
> winBlockHandler - pthread_mutex_unlock()
> Invalid MIT-MAGIC-COOKIE-1 keyInvalid MIT-MAGIC-COOKIE-1 keyInvalid
> MIT-MAGIC-COOKIE-1 keyInvalid MIT-MAGIC-COOKIE-1 key..
>
> I had this error message starting matlab, can that be fixed, is this the
> same problem or a different one?
> Warning: No display specified.  You will not be able to display graphics on
> the screen.
>
> thanks a lot

Hi,
octave graphics need X running so please follows

http://cygwin.com/problems.html

so we can understand you X server issue.

Instead of startx you can also try startxwin
directly or though the "X Win Server" icon on the start menu.
Or the new experimental xlaunch (in package xlaunch)

Regards
Marco

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Re: cygwin octave x11

[Chillosaurus]

I did cygcheck, it seems to be all of status OK. When executing I got a few
warnings. Guess they can be ignored ?
$ cygcheck -s -v -r > cygcheck.out
/usr/bin/cygrunsrv: warning: OpenService failed for 'DcomLaunch': Win32
error 5
/usr/bin/cygrunsrv: warning: OpenService failed for 'pla': Win32 error 5
/usr/bin/cygrunsrv: warning: OpenService failed for 'QWAVE': Win32 error 5
/usr/bin/cygrunsrv: warning: OpenService failed for 'RpcEptMapper': Win32
error 5
/usr/bin/cygrunsrv: warning: OpenService failed for 'RpcSs': Win32 error 5
http://old.nabble.com/file/p33864961/cygcheck.out cygcheck.out 
Here is the XWin.0.log
http://old.nabble.com/file/p33864961/XWin.0.log XWin.0.log 

starting x works, but when I open octave and try to make a plot, I get this:
octave:1> plot([1 4],[2 3],'--')
      2 [main] octave-3.6.1 2932 child_info_fork::abort:
C:\cygwin2\bin\cygfftw3-3.dll: Loaded to different address: parent(0x2C0000)
!= child(0x410000)
error: popen2: process creation failed -- Resource temporarily unavailable
error: called from:
error:   /usr/share/octave/3.6.1/m/plot/private/__gnuplot_open_stream__.m at
line 30, column 44
error:   /usr/share/octave/3.6.1/m/plot/__gnuplot_drawnow__.m at line 72,
column 19
octave:2> 

hope that's helpfull
Thank you.

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Re: cygwin octave x11

[marco atzeri]

On 5/17/2012 5:17 PM, Chillosaurus wrote:
>
> I did cygcheck, it seems to be all of status OK. When executing I got a few
> warnings. Guess they can be ignored ?
> $ cygcheck -s -v -r>  cygcheck.out

you forgot to attach cygcheck.out to the mail

> /usr/bin/cygrunsrv: warning: OpenService failed for 'DcomLaunch': Win32
> error 5
> /usr/bin/cygrunsrv: warning: OpenService failed for 'pla': Win32 error 5
> /usr/bin/cygrunsrv: warning: OpenService failed for 'QWAVE': Win32 error 5
> /usr/bin/cygrunsrv: warning: OpenService failed for 'RpcEptMapper': Win32
> error 5
> /usr/bin/cygrunsrv: warning: OpenService failed for 'RpcSs': Win32 error 5
> http://old.nabble.com/file/p33864961/cygcheck.out cygcheck.out
> Here is the XWin.0.log
> http://old.nabble.com/file/p33864961/XWin.0.log XWin.0.log
>
> starting x works, but when I open octave and try to make a plot, I get this:
> octave:1>  plot([1 4],[2 3],'--')
>        2 [main] octave-3.6.1 2932 child_info_fork::abort:
> C:\cygwin2\bin\cygfftw3-3.dll: Loaded to different address: parent(0x2C0000)
> != child(0x410000)

this is a fork issue see:
http://cygwin.com/faq-nochunks.html#faq.using.fixing-fork-failures

> error: popen2: process creation failed -- Resource temporarily unavailable
> error: called from:
> error:   /usr/share/octave/3.6.1/m/plot/private/__gnuplot_open_stream__.m at
> line 30, column 44
> error:   /usr/share/octave/3.6.1/m/plot/__gnuplot_drawnow__.m at line 72,
> column 19
> octave:2>
>
> hope that's helpfull
> Thank you.
>

Regards
Marco

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no display specified

[Chillosaurus]

Thanks for the thougths. That's the solution.
Is there a chance I can use cygwin to run matlab (including plotting
functions etc.), which is located on another machine? 

I'm getting this warning
Warning: No display specified.  You will not be able to display graphics on
the screen.

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Re: no display specified

[marco atzeri]

On 5/17/2012 6:10 PM, Chillosaurus wrote:
>
> Thanks for the thougths. That's the solution.
> Is there a chance I can use cygwin to run matlab (including plotting
> functions etc.), which is located on another machine?
>
> I'm getting this warning
> Warning: No display specified.  You will not be able to display graphics on
> the screen.
>

some more data ?
Is the remote machine a Unix one ? If so the you can look at
http://x.cygwin.com/docs/faq/cygwin-x-faq.html#q-ssh-no-x11forwarding

If it is a windows machine I doubt matlab provides a X
interface usable by cygwin

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Re: no display specified

[Chillosaurus]

 some more data ?
> Is the remote machine a Unix one ? If so the you can look at
> http://x.cygwin.com/docs/faq/cygwin-x-faq.html#q-ssh-no-x11forwarding
Yes it is a Unix cluster. A2 worked, but Matlab is approx. 60 times slower
than normal - or even worse.
Can this be solved?

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Re: no display specified

[richardvoigt]

On Thu, May 17, 2012 at 3:14 PM, Chillosaurus <ottobob89@gmx.de> wrote:
>
>
>  some more data ?
>> Is the remote machine a Unix one ? If so the you can look at
>> http://x.cygwin.com/docs/faq/cygwin-x-faq.html#q-ssh-no-x11forwarding
> Yes it is a Unix cluster. A2 worked, but Matlab is approx. 60 times slower
> than normal - or even worse.
> Can this be solved?

Do you get the same slowdown when logging in with "ssh -Y" from a
Linux workstation?


>
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Re: no display specified

[Chillosaurus]

> Do you get the same slowdown when logging in with "ssh -Y" from a
> Linux workstation?
No. No slowdown when connecting from a linux machine.


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Re: no display specified

[richardvoigt]

Maybe check to see if different extensions are negotiated on the Linux
X server vs CygwinX ?

On Fri, May 18, 2012 at 11:54 AM, Chillosaurus <ottobob89@gmx.de> wrote:
>
>
>
>> Do you get the same slowdown when logging in with "ssh -Y" from a
>> Linux workstation?
> No. No slowdown when connecting from a linux machine.
>
>
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Re: no display specified

[Chillosaurus]

Ben Voigt-2 wrote:
> 
> Maybe check to see if different extensions are negotiated on the Linux
> X server vs CygwinX ?[...]
Yes, looks like there are. The .log - file is that from the linux machine. I
should have uploaded the windows component in an earlier post.
Can there be found a reason for the slowdown from this information?
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Re: no display specified

[Jon TURNEY]

On 17/05/2012 21:14, Chillosaurus wrote:
>  some more data ?
>> Is the remote machine a Unix one ? If so the you can look at
>> http://x.cygwin.com/docs/faq/cygwin-x-faq.html#q-ssh-no-x11forwarding
> Yes it is a Unix cluster. A2 worked, but Matlab is approx. 60 times slower
> than normal - or even worse.
> Can this be solved?

If the slowdown is in drawing, it might be due to the fact you are not getting
hardware accelerated OpenGL.  To get this with the Cygwin X server currently
(1) You must be using multiwindow mode, and (2) you must 'export
LIBGL_ALWAYS_INDIRECT=1' on the remote machine.  See [1].

[1] http://x.cygwin.com/docs/ug/using-aiglx.html

-- 
Jon TURNEY
Volunteer Cygwin/X X Server maintainer



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