[FWTools] OpenEV and system freeze

[Hernán De Angelis]

Frank,

Thanks for your answer. I always use the -h option (not using it
causes a segfault):
/usr/local/FWTools-2.0.4/bin/openev: line 25: 14795 Violación de
segmento  ${OPENEV_HOME}/bin/python ${OPENEV_HOME}/pymod/openev.py "$@

I have experienced this problem in other computers as well so may be
there is something with the OpenGL implementation used by SUSE (Mesa).
May be I will have to try a different operative system, or simply live
with this.

Thanks again,

Hernán




2008/1/11, Frank Warmerdam <warmerdam at pobox.com>:
> Hernán De Angelis wrote:
> > Hi all,
> >
> > I am frequent (and happy) user of OpenEV, and have used it for about
> > two and a half years now. I normally use it to visualize rasters or to
> > digitize on them using shapefiles. From time to time, however, I
> > experience a very annoying situation, particularly when opening big
> > rasters or manipulating large and complicated vector layers: the whole
> > system freezes and there is no way out of that rather than swtiching
> > off the computer by brute-force. I have tried all possible
> > combinations (Alt+F4, Alt+sysrq+B, etc) but nothing, switching off is
> > the only working solution. Of course, after that extreme measure the
> > last unsaved changes are lost, so I painfully learned to save the
> > vector file after every single digitized polygon or so. I have
> > experienced this problem with several versions of the operating system
> > I use (SuSE 9.1, 9.3 and all versions of openSUSE until 10.3), using
> > several versions of FWTools. Is this a known issue? Is there any
> > solution or is a part of the "OpenGL / Mesa" issues?
>
> Hernán,
>
> This sounds like an OpenGL driver problem.  If you are using the software
> OpenGL distributed with FWTools then adding the -h flag to openev might
> avoid the problem.  The -h flag uses the systems own OpenGL implementation
> and is potentially must faster if it takes advantage of hardware acceleration.
>
> If you are already using -h, then not using -h or possibly upgrading your
> video drivers (or even card) may help.
>
> Best regards,
> --
> ---------------------------------------+--------------------------------------
> I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
> light and sound - activate the windows | http://pobox.com/~warmerdam
> and watch the world go round - Rush    | President OSGeo, http://osgeo.org
>
>


-- 

Hernán De Angelis
Linux user # 397217