Dear all
I'm new to virtualGL and try to use it in a Cendio/Thinlinc environment.
The first tests (VirtualGL 2.5) have been _quite_ impressive by using
Gnome3 or Compiz/Unity (Ubuntu 16.04, thinlinc 4.6). Thanks a lot for
this superb software - in fact, I couldn't believe that there exist a
free solution for sharing GPU(s) among several desktop sessions. Fantastic.
For our test, we use a NVIDIA Corporation GT218 [GeForce 210]. We
installed two of them, but are using only one at the moment.
After a few days some desktop sessions starts to show garbled desktops,
typically for less than a second. 'garbled' means a lot of pixel (not
all) are wrong.
Moving the mouse or a window fixes the broken display - but only until
it happens again (sometimes after 10 seconds, sometimes after hours).
This appears neither regular nor in every desktop session (one of three
daily users never saw this effect). Killing the session and re-login
doesn't change anything.
We see no error messages indicating a problem.
The nvidia monitoring shows:
$ nvidia-smi
Thu Sep 15 20:39:59 2016
+------------------------------------------------------+
| NVIDIA-SMI 340.96 Driver Version: 340.96 |
|-------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile
Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util
Compute M. |
|===============================+======================+======================|
| 0 GeForce 210 Off | 0000:81:00.0 N/A |
N/A |
| N/A 36C P8 N/A / N/A | 935MiB / 1023MiB | N/A
Default |
+-------------------------------+----------------------+----------------------+
| 1 GeForce 210 Off | 0000:82:00.0 N/A |
N/A |
| N/A 35C P8 N/A / N/A | 2MiB / 1023MiB | N/A
Default |
+-------------------------------+----------------------+----------------------+
+-----------------------------------------------------------------------------+
| Compute processes: GPU
Memory |
| GPU PID Process name Usage
|
|=============================================================================|
| 0 Not Supported
|
| 1 Not Supported
|
+-----------------------------------------------------------------------------+
Any ideas or hints about the reason or how to do more investigation?
Thanks a lot for your time.
CU
Carsten
--
Carsten Rose
IT Koordinator / Institut für Mathematik
*****
Universität Zürich
Carsten Rose
Institut für Mathematik, Y27-J40
Winterthurerstrasse 190
CH-8057 Zürich
+41 44 635 58 47 Telefon
+41 44 635 57 05 Telefax
www.math.uzh.ch
carsten.r...@math.uzh.ch
"Wenn ein unordentlicher Schreibtisch einen unordentlichen Geist
repräsentiert, was sagt dann ein leerer Schreibtisch über den Menschen,
der ihn benutzt aus?" - Albert Einstein
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