[X2Go-User] x2go, GLX option

[Leopold Palomo-Avellaneda]

A Dijous, 17 de juliol de 2014, Michael DePaulo va escriure:
> On Wed, Jul 16, 2014 at 6:12 PM, Leopold Palomo-Avellaneda
> <leo at alaxarxa.net> wrote:
> > El Dimecres, 16 de juliol de 2014, a les 14:55:59, Michael DePaulo va
> > escriure:
> >> On Jul 16, 2014 11:44 AM, "Leopold Palomo-Avellaneda" <leo at alaxarxa.net>
> >>
> >> wrote:
> >> > Hi,
> >> >
> >> > I have an ubuntu 12.04 installed in a kvm host. In this ubuntu, I have
> >> > installed x2goserver.
> >> >
> >> > I have configured  /etc/x2go/x2goagent.options with
> >> > #
> >> > X2GO_NXAGENT_DEFAULT_OPTIONS+=" -extension GLX"
> >>
> >> Change the - to a +
> >> The - disables the specified X11 extension, the + enables it.
> >
> > :-)
> >
> > please, x2go-dev, at least to me, the text in the config file has not been
> > clear. Could you add some note about this?
> 
> We didn't invent the convention of +extension vs -extension. Neither
> did NoMachine when they were writing NX. It is the convention of
> upstream X.org (and XFree86 before them.)
> 
> That said, I agree that we should add a note and/or clarify. (I was
> thinking that myself when I replied to your email.) I'll look into
> that and probably have it done soon.

thanks!!!!


> 
> > Also, I have solved this, but I still have problems with some software 
that
> > under a remote virt-manager is working but not under x2go.
> >
> > If I run a graphical python qt program I got:
> >
> >
> > python: Fatal IO error 11 (Resource temporarily unavailable) on X server 
:5
> >
> >
> > and if I run for instance gazebo, I got:
> >
> > X Error of failed request:  BadMatch (invalid parameter attributes)
> >   Major opcode of failed request:  147 (GLX)
> >   Minor opcode of failed request:  5 (X_GLXMakeCurrent)
> >   Serial number of failed request:  22
> >   Current serial number in output stream:  22
> >
> > Any idea?
> 
> We've disabled GLX by default because It causes many applications to
> not work. The reason is that our "X server", nxagent 3.5.0.x, is based
> on X.org 6.9, from 2005. Therefore, nxagent implements a very old
> version of the GLX protocol. Many apps try to use it, but require a
> newer version of the GLX protocol, and thus fail.
> You can read more about this problem here:
> http://wiki.x2go.org/doku.php/doc:de-compat
> (I just wrote that wiki page yesterday. Feedback is welcome.)

well, in my case there's no a problem of desktop, it's of application. So, the 
wiki is too much desktop centric. You asked feedback ....
> 
> Does gazebo require 3D acceleration? 

yes ... if relays in OGRE libs.

> If not, try running it with GLX
> disabled. If you are still having trouble running it, let me know and
> I'll test gazebo on a KVM/virt-manager Ubuntu 12.04 VM at my home.

I will send you in private a virt machine to test.

 
> Also let me know the following:
> 1. Are you using X2Go Server from baikal (LTS) (4.0.0.x), or from
> stable (main) (4.0.1.x)?
I have this:

ii  x2goagent                                  2:3.5.0.27-0~446~ubuntu12.04.1                      
X2Go agent
ii  x2goserver                                 4.0.1.15-0~847~ubuntu12.04.1                        
X2Go server daemon scripts
ii  x2goserver-extensions                      4.0.1.15-0~847~ubuntu12.04.1      


> (The 2 PPAs are here: https://launchpad.net/~x2go )
> 2. What desktop environment are you running this under? There was
> recently a discussion about this problem on IRC, and it might be
> desktop environment related.

the server has UNITY, the client where I connect from kde, Debian Wheezy


> 3. 32-bit or 64-bit OS?

the server 32 bits the client 64.

> 
> > Linux User 152692     PGP: 05F4A7A949A2D9AA
> > Catalonia
> > -------------------------------------
> > A: Because it messes up the order in which people normally read text.
> > Q: Why is top-posting such a bad thing?
> > A: Top-posting.
> > Q: What is the most annoying thing in e-mail?
> 
> I whole-heartedly agree with this Q&A :)

:-)


-- 
--
Linux User 152692
Catalonia
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