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Hi d.m. and Paul,
I think, x2go only supports GLX 1.2.
Have you tried this workaround:
http://wiki.x2go.org/doku.php/wiki:development:glx-xlib-workaround ?
Cheers,
Kristian
On 23.08.2017 11:23, paul mccarthy wrote:
> Hi d.m.,
>
> Currently the graphics hardware on your remote machines is not being
> used at all - GLX redirects all graphics calls to the local machine that
> you connect from. If you want to use the graphics cards on your server,
> then the only way I am aware of is via VirtualGL.
>
> If you want to continue using x2go/freenx, then unfortunately I don't
> know of a workaround for the problem you are experiencing. I have not
> been able to reproduce it. Hopefully Kristian or somebody else may be
> able to give some advice.
>
> Cheers,
>
> Paul
>
> On 22 August 2017 at 19:18, d m <[log in to unmask]
> <mailto:[log in to unmask]>> wrote:
>
> Kristian and Paul, thank you for your feedback.
>
>
> Yes, we do connect remotely to our server using x2go/freenx.
>
>
> I tried clearing the LIBGL_ALWAYS_INDIRECT environment variable. It
> still did not work. I think the problem is that I have more than one
> graphics card on our machine. We have a Matrox VGA controller and
> two NVIDIA 3-D controllers installed on the machine.
>
>
> We have other servers with one card installed (the same VGA
> controller ), and fsleyes works fine.
>
>
> Somehow we are reduced to Opengl 1.2 and OpenGL renderer string:
> Mesa GLX Indirect with our hybrid graphic card setup. Is there a
> workaround or solution for this to get fsleyes running?
>
>
> Thanks.
>
>
> d.m.
>
> ------------------------------------------------------------------------
> *From:* FSL - FMRIB's Software Library <[log in to unmask]
> <mailto:[log in to unmask]>> on behalf of Kristian Loewe
> <[log in to unmask] <mailto:[log in to unmask]>>
> *Sent:* Tuesday, August 8, 2017 4:03:02 PM
> *To:* [log in to unmask] <mailto:[log in to unmask]>
> *Subject:* Re: [FSL] fsleyes installation in Ubuntu 14.04
> Hi,
>
> If indirect rendering is not possible, another option is to use
> VirtualGL. With VirtualGL, you can use the server's GPU for rendering
> and have the rendered results sent to your local or virtual X server.
> Depending on the graphics setup, the network speed, and the data size,
> this approach may also give you noticably better performance than
> indirect rendering.
>
> Cheers,
>
> Kristian
>
> On 08.08.2017 20:10, paul mccarthy wrote:
> > Hi d.m.,
> >
> > I guess you are running FSLeyes on a remote server, right? Try clearing
> > the LIBGL_ALWAYS_INDIRECT environment variable, as documented here:
> >
> > https://users.fmrib.ox.ac.uk/~paulmc/fsleyes/userdoc/latest/troubleshooting.html#opengl-1-4-or-newer-is-required-detected-version-1-2
> <https://users.fmrib.ox.ac.uk/~paulmc/fsleyes/userdoc/latest/troubleshooting.html#opengl-1-4-or-newer-is-required-detected-version-1-2>
> >
> > Unfortunately if this doesn't work, I have not yet figured out a
> > solution for this problem.
> >
> > Cheers,
> >
> > Paul
> >
> > On 8 August 2017 at 17:45, d m <[log in to unmask] <mailto:[log in to unmask]>
> > <mailto:[log in to unmask]>> wrote:
> >
> > Michael,
> >
> >
> > Thanks for the suggestion. That worked, but now I get the following
> > error message after typing "./fsleyes":
> >
> >
> > WARNING __init__.py 595: create - GLContext
> > callback function raised RuntimeError: OpenGL 1.4 or newer is
> > required (detected version: 1.2
> > Traceback (most recent call last):
> > File "fsleyes/gl/__init__.py", line 589, in create
> > File "fsleyes/main.py", line 377, in realCallback
> > File "fsleyes/gl/__init__.py", line 314, in bootstrap
> > RuntimeError: OpenGL 1.4 or newer is required (detected version: 1.2
> >
> > Have you or anyone seen this message? If so, what was the solution?
> >
> >
> > Thanks.
> >
> >
> > d.m.
> >
> > ------------------------------------------------------------------------
> > *From:* FSL - FMRIB's Software Library <[log in to unmask] <mailto:[log in to unmask]>
> > <mailto:[log in to unmask]>> on behalf of Michael Firbank
> > <[log in to unmask] <mailto:[log in to unmask]>
> > <mailto:[log in to unmask]
> <mailto:[log in to unmask]>>>
> > *Sent:* Friday, July 7, 2017 5:16:57 PM
> >
> > *To:* [log in to unmask] <mailto:[log in to unmask]>
> <mailto:[log in to unmask]>
> > *Subject:* Re: [FSL] fsleyes installation in Ubuntu 14.04
> >
> > Hello
> >
> >
> > You can unzip the folder wherever you like. Probably the $FSLDIR/bin
> > is not the best place.
> >
> > In any case the fsleyes file needs to be in a directory on your path.
> >
> > if you need to see what that is, type
> >
> > echo $PATH
> >
> >
> > If you unzipped it in the $FSLDIR/bin directory, the actual
> > executable will be in
> >
> > $FSLDIR/bin/FSLeyes
> >
> > if you cd to that directory and type
> >
> > ./fsleyes
> >
> > then it should start.
> >
> >
> > you can create a link to the fsleyes program by changing directory
> > to $FSLDIR/bin and then
> >
> > ln -s FSLEYESDIRECTORY/fsleyes fsleyes
> >
> >
> > where FSLEYESDIRECTORY is the directory where fsleyes is. so you
> > probably want
> >
> > ln -s $FSLDIR/bin/FSLeyes/fsleyes fsleyes
> >
> >
> > Hope that helps
> >
> >
> > Michael
> >
> >
> > ------------------------------------------------------------------------
> > *From:* FSL - FMRIB's Software Library <[log in to unmask] <mailto:[log in to unmask]>
> > <mailto:[log in to unmask]>> on behalf of d m <[log in to unmask]
> <mailto:[log in to unmask]>
> > <mailto:[log in to unmask]>>
> > *Sent:* 07 July 2017 18:25
> > *To:* [log in to unmask] <mailto:[log in to unmask]>
> <mailto:[log in to unmask]>
> > *Subject:* Re: [FSL] fsleyes installation in Ubuntu 14.04
> >
> > Michael,
> >
> >
> > Thanks for the reply.
> >
> >
> > I'm still somewhat confused. Where exactly do I unzip the folder?
> >
> >
> > Is it the $FSLDIR/bin/ directory?
> >
> >
> > If so, I added the folder and nothing changed.
> >
> >
> > Are there any further steps to complete before using fsleyes? Is
> > fslview no longer usable by adding the FSLeyes folder?
> >
> >
> > One thing I noticed, the neurodebian page only shows FSLeyes listed
> > for 16.04 and 17.04. Nothing for 14.04? Maybe that is the issue?
> >
> >
> > http://neuro.debian.net/pkgs/fsleyes.html?highlight=fsleyes
> <http://neuro.debian.net/pkgs/fsleyes.html?highlight=fsleyes>
> > <http://neuro.debian.net/pkgs/fsleyes.html?highlight=fsleyes
> <http://neuro.debian.net/pkgs/fsleyes.html?highlight=fsleyes>>
> >
> >
> > Thanks.
> >
> >
> > d.m.
> >
> > ------------------------------------------------------------------------
> > *From:* FSL - FMRIB's Software Library <[log in to unmask] <mailto:[log in to unmask]>
> > <mailto:[log in to unmask]>> on behalf of Michael Firbank
> > <[log in to unmask] <mailto:[log in to unmask]>
> > <mailto:[log in to unmask]
> <mailto:[log in to unmask]>>>
> > *Sent:* Friday, July 7, 2017 10:10:29 AM
> > *To:* [log in to unmask] <mailto:[log in to unmask]>
> <mailto:[log in to unmask]>
> > *Subject:* Re: [FSL] fsleyes installation in Ubuntu 14.04
> >
> > Hello
> >
> > For 16.04 I just downloaded and unzipped the relevant file from
> >
> > https://fsl.fmrib.ox.ac.uk/fsl/fslwiki/FSLeyes
> <https://fsl.fmrib.ox.ac.uk/fsl/fslwiki/FSLeyes>
> > <https://fsl.fmrib.ox.ac.uk/fsl/fslwiki/FSLeyes
> <https://fsl.fmrib.ox.ac.uk/fsl/fslwiki/FSLeyes>>
> >
> > FSLeyes - FslWiki - fsl.fmrib.ox.ac.uk <http://fsl.fmrib.ox.ac.uk>
> > <https://fsl.fmrib.ox.ac.uk/fsl/fslwiki/FSLeyes
> <https://fsl.fmrib.ox.ac.uk/fsl/fslwiki/FSLeyes>>
> > fsl.fmrib.ox.ac.uk <http://fsl.fmrib.ox.ac.uk>
> <http://fsl.fmrib.ox.ac.uk>
> > FSLeyes (pronounced fossilise) is the new FSL image viewer, released
> > with FSL 5.0.10. FSLeyes can either be installed as a standalone
> > application, or can be installed ...
> >
> > seems to work ok.
> >
> > Michael
> >
> > *From:*FSL - FMRIB's Software Library [mailto:[log in to unmask] <mailto:[log in to unmask]>
> > <mailto:[log in to unmask]>] *On Behalf Of *d m
> > *Sent:* 07 July 2017 15:03
> > *To:* [log in to unmask] <mailto:[log in to unmask]>
> <mailto:[log in to unmask]>
> > *Subject:* [FSL] fsleyes installation in Ubuntu 14.04
> >
> > Hello,
> >
> > How does one install fsleyes with Ubuntu 14.04? We have installed
> > fsl using neurodebian.
> >
> > Thanks.
> >
> > d.m.
> >
> >
>
>
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