glx via tighvnc

[A***@csiro.au]

Hi List,

I am unable to run GLX through the tightvnc remote connection via ssh
tunneling (using KDE or fwm or gnome, but was possible on MandrakeKde).
GLX runs on local login.

Any idea if this is possible at all?

Thanx
Herry

running opensuse10.2 on x86_64

[M Harris]

Post by A***@csiro.au
I am unable to run GLX through the tightvnc remote connection via ssh
tunneling (using KDE or fwm or gnome, but was possible on MandrakeKde).
GLX runs on local login.

Typically you want to minimize the detail on a vnc connection (even
compressed through ssh). Set backgrounds to solid colors, and minimize the
amount of activity on the screen... I usually do not animate windows, and I
use a passive active cursor for launchers. I would not even consider running
GLX over a tunneled tight vnc connection.... but I'm sure you'll find
somebody here who does. :)

[M Harris]

Yep, if I am outside the LAN I agree. But I have sufficient speed .
Pitty is I need it to run some statistical program that requires GLX for
a limited part, but expects it on startup...

Well, GLX requires hardware support and vnc is a software "virtual" frame
buffer so I'm surprised it would ever work... but then I'm not sure what is
supposed to happen if the client (vncviewer) is running on a machine with
hardware support for GLX then does it work? I still cannot imagine that it
would run fast enough to make it worth it.

[M Harris]

As I said, I used to run it in an earlier version. The issue is not the
speed because I do not do gaming. All I need it for is to start up the
stats prg, which requires it...

Well, when I tunnel into my server and run glxgears, glx is piped back to the
client over ssh (compressed) albeit running much slower... and I get the
following errors:
libGL error: open DRM failed (operation not permitted)
libGL error: reverting to (slow) indirect rendering

1072 frames in 6.0 seconds 178.667 FPS

[CyberOrg]

Post by M Harris

Yep, if I am outside the LAN I agree. But I have sufficient speed .
Pitty is I need it to run some statistical program that requires GLX for
a limited part, but expects it on startup...

Well, GLX requires hardware support and vnc is a software "virtual" frame
buffer so I'm surprised it would ever work... but then I'm not sure what is
supposed to happen if the client (vncviewer) is running on a machine with
hardware support for GLX then does it work? I still cannot imagine that it
would run fast enough to make it worth it.

See x11vnc, I have run compiz on a client that does not support Xgl/3D
(via_agp) .

Cheers

-J

[Clayton]

Post by M Harris

Yep, if I am outside the LAN I agree. But I have sufficient speed .
Pitty is I need it to run some statistical program that requires GLX for
a limited part, but expects it on startup...

Well, GLX requires hardware support and vnc is a software "virtual" frame
buffer so I'm surprised it would ever work... but then I'm not sure what is
supposed to happen if the client (vncviewer) is running on a machine with
hardware support for GLX then does it work? I still cannot imagine that it
would run fast enough to make it worth it.

I've had this working using x11vnc over an SDSL connection.
Working... but not well... very low frame rates, and a maxed out
connection. If I dropped the color palate down it got reasonably
usable. Couldn't play full screen games though :-) GL screensavers
also sort of worked... if you can call 1 or 2 fps working.


C.