Phil said: > Hi Alan > Unfortunately you can probably ignore that email.
> On my work centos machine I tried running an example under the xwin device - thinking that a buffer problem would be likely to show up there as well as in the tk device. I then got just a black window and a hang. Moving back in time I found that the commit I listed gave the same black window and hang but the one before gave fine results. I've just looked at this from home and both on my Ubuntu PC and my Centos PC (both SSH'd in with x forwarding from Cygwin) ant the tip of master runs fin in both cases. > So now I am utterly confused and have not got the tk driver running. My guess is that SSH with X forwarding has figured out all the X authorization issues, while those may still occur whenever you try to use direct access. So I would encourage you to test that hypothesis by trying -dev tk over an SSH X forwarded connection. That may allow you to verify the two-GUI issue for -dev tk for master tip. Assuming that hypothesis is correct, the change (for direct access for you) from working screen to black screen from 1e402417c1f^ to 1e402417c1f may not be a regression, but instead the result of (inadvertently) tightening up the X security model with that plbuf change. @Andrew: I hope you respond to this by advising Phil the best way to have properly authorized X access when using Ubuntu directly, checking whether the above plbuf change makes a difference in your -dev xwin and -dev tk results on Ubuntu, etc. For what it is worth, for the direct case I am just using the default X authorization for Debian that you get with the traditional "startx" method of starting my (KDE) desktop. In other words, I don't use any of the xdm, kdm, or gdm3 display-manager methods of starting X for the direct case, but I am not sure whether that is relevant or not. But apparently, X is properly authorized by this method at least for Debian so the plbuf change referred to above has no effect on -dev tk results for me. Alan __________________________ Alan W. Irwin Astronomical research affiliation with Department of Physics and Astronomy, University of Victoria (astrowww.phys.uvic.ca). Programming affiliations with the FreeEOS equation-of-state implementation for stellar interiors (freeeos.sf.net); the Time Ephemerides project (timeephem.sf.net); PLplot scientific plotting software package (plplot.sf.net); the libLASi project (unifont.org/lasi); the Loads of Linux Links project (loll.sf.net); and the Linux Brochure Project (lbproject.sf.net). __________________________ Linux-powered Science __________________________ ------------------------------------------------------------------------------ Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
