Hi! Thanks for your quick reply. Yes, I forgot to mention the card. It's a Nvidia GPU GT 430 with driver version 334.21. We didn't experience any of this kind of problem for a long time, it's very strange.
Thanks, Stephan > I have never seen issues like this with nVidia drivers, and in fact VGL > is deployed commercially on machines where dozens of users (sometimes > more) are sharing a GPU. > > I have, however, seen multi-instance problems like this with Intel's > drivers. You didn't specify which GPU and driver revision you are using, > and that's probably the most relevant piece of information pertaining to > this issue. > > > On Sep 11, 2014, at 6:55 AM, Stephan Josel <s.josel@...> wrote: > > > > Hi! > > > > Has anyone experienced the following and found a solution? > > > > On our server (I set it up as headless X-server on display :0) where vgl > > is installed user A starts an OpenGL application. Another user (user B) > > connects to the server and tries to start also the same OpenGL > > application. However, user B does not get a correct display of the > > OpenGL application, he rather gets a "damaged" framebuffer or even a > > black one. If I change the order of start of the application (user B > > first then user A), the same behavior is there. > > > > I did the following to exclude errors: > > > > * Check if X :0 has direct rendering: yes > > * Found no suspicious log entries in the vgl client logs > > * Reproduced the error with different OpenGL applications > > > > It's very strange since this behavior came suddenly. > > > > Thanks in advance, > > Stephan > > > > > ------------------------------------------------------------------------------ > > > Want excitement? > > Manually upgrade your production database. > > When you want reliability, choose Perforce > > Perforce version control. Predictably reliable. > > > http://pubads.g.doubleclick.net/gampad/clk?id=157508191&iu=/4140/ostg.clktrk > > > _______________________________________________ > > VirtualGL-Users mailing list > > VirtualGL-Users@... > > https://lists.sourceforge.net/lists/listinfo/virtualgl-users > > ------------------------------------------------------------------------------ Want excitement? Manually upgrade your production database. When you want reliability, choose Perforce Perforce version control. Predictably reliable. http://pubads.g.doubleclick.net/gampad/clk?id=157508191&iu=/4140/ostg.clktrk _______________________________________________ VirtualGL-Users mailing list VirtualGL-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtualgl-users
