Ok so, thanks. I tought it was a bug, but no, ok :)
Thanks for those informations !
On Thu, Dec 16, 2010 at 7:14 AM, DRC <[email protected]>wrote:
> Here's what I observe. Let's take three machines, {VGLCLIENT},
> {SSHCLIENT}, and {SERVER}. I modified vglrun such that it prints the
> value of VGL_CLIENT before executing the 3D program.
>
> {VGLCLIENT}:
> -- Enable X11 TCP connections
> -- Log in to X server
> -- xhost +{SERVER}
> -- Start vglclient
>
> {SSHCLIENT}> ssh -x {SERVER}
>
> {SERVER}> vglrun /opt/VirtualGL/bin/glxspheres
> [VGL] NOTICE: Automatically setting the DISPLAY environment variable to
> [VGL] {SSHCLIENT's IP}:0.0, based on the IP address of your SSh client.
> VGL_CLIENT=
> Polygons in scene: 62464
> ERROR (549): Could not open display
>
> Expected, because there is no X server running on {SSHCLIENT} at the
> moment. Now,
>
> SERVER> vglrun -cl {VGLCLIENT} /opt/VirtualGL/bin/glxspheres
> [VGL] NOTICE: Automatically setting the DISPLAY environment variable to
> [VGL] {SSHCLIENT's IP}:0.0, based on the IP address of your SSh client.
> VGL_CLIENT={VGLCLIENT}
> Polygons in scene: 62464
> ERROR (549): Could not open display
>
> Same as above. VGL_CLIENT is being set correctly, but DISPLAY needs to
> also be set.
>
> SERVER> export DISPLAY={VGLCLIENT}:0.0
> SERVER> vglrun /opt/VirtualGL/bin/glxspheres
> VGL_CLIENT=
>
> This succeeds, because if VGL_CLIENT is not set, VirtualGL will first
> look at the value of DISPLAY and try to find a running instance of
> vglclient on that machine.
>
> SERVER> export DISPLAY={VGLCLIENT}:0.0
> SERVER> vglrun -cl {VGLCLIENT} /opt/VirtualGL/bin/glxspheres
> VGL_CLIENT={VGLCLIENT}
>
> This succeeds as well, because the value of VGL_CLIENT explicitly tells
> VirtualGL where to look for the running instance of vglclient.
>
> Everything is working exactly as expected.
>
>
> On 12/15/10 4:26 PM, Philippe wrote:
> > I checked the value of VGL_CLIENT and nothing what set, then I set
> > VGL_CLIENT=CLIENT1 and keep -cl CLIENT1 in the vglrun command line, and
> > I still get the same result, the only way to resolv the issue was to set
> > DISPLAY=CLIENT1:0.0 :)
> >
> > On Wed, Dec 15, 2010 at 9:50 PM, DRC <[email protected]
> > <mailto:[email protected]>> wrote:
> >
> > The normal behavior is for vglrun to parse the value of the
> > SSHCLIENT environment variable, which should contain the IP address
> > of ME in your case, and set VGL_CLIENT from this. However,
> > specifying vglrun -cl will override this behavior. I think you may
> > be misdiagnosing the issue. I suspect that VGL_CLIENT is being set
> > properly when you specify vglrun -cl, but since vglclient and your X
> > server are running on a different machine from your ssh client
> > machine, you have to explicitly set both DISPLAY and VGL_CLIENT to
> > point to that machine in order for VGL to work properly.
> >
> >
> > On Dec 15, 2010, at 1:41 PM, Philippe <[email protected]
> > <mailto:[email protected]>> wrote:
> >
> >> I specified the CLIENT1 IP (consider I'm NOT the CLIENT1, I'm me
> >> :) ), then here is what I try to do :
> >> ME > ssh > SERV1 > vglrun -cl CLIENT1 > CLIENT1 (vglclient
> listening)
> >> In this configuration, like you said, vglrun take care of MY IP
> >> instead of CLIENT1 IP, and then try to connect to MY vglclient
> >> (who's not running) instead of CLIENT1 vglclient.
> >> Is it normal ?
> >> So the solution, for the moment, is to set $DISPLAY=CLIENT1:0.0 .
> >>
> >> On Wed, Dec 15, 2010 at 7:51 PM, DRC
> >> <<mailto:[email protected]>
> [email protected]
> >> <mailto:[email protected]>> wrote:
> >>
> >> The option is still supported, and it's documented in the
> >> User's Guide
> >> (under Advanced Configuration), but it isn't listed in the
> >> vglrun output
> >> because it isn't a commonly-used option.
> >>
> >> vglconnect eliminated the need to run vglclient manually as
> you're
> >> describing, so most people use vglconnect. Also, vglrun will
> >> automatically set VGL_CLIENT to the IP address of your client
> >> machine if
> >> you are using SSh, so even if you aren't using vglconnect, it
> >> still
> >> should not normally be necessary to set VGL_CLIENT manually.
> >>
> >> The -cl option works as I expect, and its behavior has not
> changed
> >> significantly in years. Not sure why it isn't working for you.
> >>
> >> On 12/15/10 8:25 AM, Philippe wrote:
> >> > Hello,
> >> > I got a problem recently, first, in vglrun --help there's no
> more
> >> > indications about the -cl option, but it's always in the
> online
> >> > documentation, is it normal ?
> >> > And second, (I don't use vglconnect, I just connect myself
> >> from my
> >> > computer with ssh and launch vglrun from SERV1 to CLIENT1
> >> with vglrun
> >> > -cl CLIENT1 and vglclient listening on CLIENT1) SERV1 doesn't
> >> take care
> >> > of the -cl argument, it uses my IP instead of the CLIENT1 IP.
> >> >
> >> > I don't understand why.
> >> >
> >> > Is the -cl argument always available ?
> >> >
> >> > Thanks for help.
> >> >
> >> > Philippe.
> >> >
> >> >
> >> >
> >> >
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