On Thursday 14 November 2013 09:14:27 David Armstrong did opine:
> On 14/11/13 13:20, Gene Heskett wrote:
> > On Thursday 14 November 2013 07:39:25 Erik Christiansen did opine:
> >> On 13.11.13 15:59, Gene Heskett wrote:
> >>> I have added /usr/lib/camunits to one of the files in
> >>> /etc/ld.so.conf.d, and have verified that path is correct, but I
> >>> don't seem to be able to make a "sudo ldconfig -v|less" show me that
> >>> it is seeing a single one of the dozen plus .so files there. I was
> >>> under the impression all we ever had to give it was the top level of
> >>> a tree it (ldconfig) was supposed to process.
> >>
> >> Gene, what you should specify (AIUI) is the actual directory
> >> containing the .so, as shown by a comparison with e.g.
> >>
> >> $ more /etc/ld.so.conf.d/libasound2.conf
> >> /usr/lib/alsa-lib
> >>
> >> $ ls /usr/lib/alsa-lib
> >> libasound_module_conf_pulse.so libasound_module_ctl_arcam_av.so
> >> ...
> >>
> >> If that's analogous to what you have, then have you tried:
> >>
> >> $ ldconfig -p | grep <camunits_or_whatever_the_lib_is_called>
> >>
> >> With -p it lists candidate libraries stored in the current cache.
> >> (Reams of 'em.)
> >>
> >> Once that picks it up, you're in with a chance.
> >>
> >> Silly question time: the .so was in /usr/lib/camunits, when ldconfig
> >> -v was run? (Just checkin ;)
> >>
> >> If that doesn't do it, and you're (fed up and) not stopping to chase
> >> the showstopper down all its burrows, then the following has worked
> >> for me for a quick result. For the Bitscope I'd put the required
> >> library in /usr/lib/bitscope, and even this result:
> >>
> >> $ ldconfig -p | grep libborqt
> >>
> >> libborqt-6.9.0-qt2.3.so (libc6) =>
> >>
> >> /usr/lib/bitscope/libborqt-6.9.0-qt2.3.so
> >>
> >> wasn't enough for the .so to be found, so I just banged this onto the
> >> command line:
> >>
> >> $ export LD_LIBRARY_PATH=/usr/lib/bitscope:$LD_LIBRARY_PATH
> >>
> >> Then the executable happily found the .so more or less "manually".
> >>
> >>> Perhaps I'm running it wrong?
> >>
> >> Yup. The secret is to run it less wrong, till it works well enough
> >> for now, as far as I can tell.
> >>
> >> Erik
> >
> > These machines did not have an LD_LIBRARY_PATH defined or exported, so
> > I set up just these two:
> > gene@shop:~/linuxcnc$ echo $LD_LIBRARY_PATH
> > /usr/lib/camunits:/usr/local/lib/camunits
> >
> > Which obviously is not enough as I get the impression it isn't finding
> > libv4lconvert, or at least the wrong one since there are at least 2
> > versions extant. Or are there, locate only finds one.
> >
> > I think, now that the build deps have been used, I'll have to go back
> > and reinstall a bunch of mesa stuff that opengl pulls out as I can
> > see something for video, but only the mesa versions seem to recognize
> > and actually synch to the formats. According to apt-get:
> >
> > gene@shop:~/linuxcnc$ sudo apt-get install libgl1-mesa-swx11
> > libgl1-mesa- swx11-dev
> > Reading package lists... Done
> > Building dependency tree
> > Reading state information... Done
> >
> > The following packages will be REMOVED:
> > libgl1-mesa-dev libgl1-mesa-glx
> >
> > The following NEW packages will be installed:
> > libgl1-mesa-swx11 libgl1-mesa-swx11-dev
> >
> > 0 upgraded, 2 newly installed, 2 to remove and 0 not upgraded.
> > Need to get 0B/1,658kB of archives.
> > After this operation, 5,632kB of additional disk space will be used.
> > Do you want to continue [Y/n]?
> >
> > Now after removing
> >
> > The following packages will be REMOVED:
> > libgl1-mesa-dev libgl1-mesa-glx
> >
> > The following NEW packages will be installed:
> > libgl1-mesa-swx11 libgl1-mesa-swx11-dev
> >
> > The camera again works well in camview. but not in linuxcnc, white
> > screen in linuxcnc. And leaves this error trace:
> >
> > Traceback (most recent call last):
> > File "/usr/bin/camview-emc", line 291, in <module>
> >
> > view = EmcView(options)
> >
> > File "/usr/bin/camview-emc", line 84, in __init__
> >
> > w.load_from_str(open(options.chain).read())
> >
> > RuntimeError: Unable to instantiate [emc.halio]
> >
> > But halio.so is there. camview seems to have all working controls,
> > (using the exact same camviewcfg) linuxcnc doesn't even draw the
> > initial control buttons. There is a clue there I'm sure.
> > ENOTENOUGHCOFFEE maybe?
> >
> > Linuxcnc draws the align button on the right screen but plain white,
> > no buttons in the backplot window, and both fuss about emc-halio.
> >
> > But I've not even had my morning coffee yet.
> >
> > Thanks Eric
> >
> > Cheers, Gene
>
> Gene ,
>
> this is the section , i think giving the problem
>
> if options.window:
> reparent(window, xid)
>
> w = builder.get_object('chain_gl_widget')
> self.glwidget = w
> if options.chain:
> w.load_from_str(open(options.chain).read())
> self.chain_file = options.chain
> else:
> w.set_chain(self.create_chain(options))
> self.chain_file = None
> c = w.get_chain()
> c.attach_glib(1000, None)
>
> just need to understand it a bit more , i presume it's looking for the
> graphics lib which
> in your case is changed from the freeimage lib
>
> i may be wrong of course , as usual
>
Its a thought, but I have not removed the freeimage stuff that was asked
for. I am making progress of sorts though, see subsequent posts this
morning.
Thanks David
Cheers, Gene
--
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