This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.
Donna, Here is what we found about your Dell computer installed with Redhat Linux 7.3. In your file /etc/X11/XF86Config-4 is the line # Load "glx" # OpenGL X protocol interface remove the # that comments-out the line or simply make the line Load "glx" Please let us know if this solves the problem. Stuart Wier > >To: address@hidden > >From: address@hidden > >Subject: idv and RedHat 7.3 > >Organization: University of Kansas > >Keywords: 200307241644.h6OGiOLd006682 IDV RedHat 7.3 Linux > > ---------- > X-Sun-Data-Type: text > X-Sun-Data-Description: text > X-Sun-Data-Name: text > X-Sun-Charset: us-ascii > X-Sun-Content-Lines: 13 > > I am trying to run IDV on a system running RedHat Linux 7.3. I get > a variety of error messages (see attached file) but everything runs > until I try to create a display. I noted that the documentation > said that users of RedHat Linux may need to install mesa from source. > I have not done this. Is that my problem? The documentation does > not say where the mesa package should be put on the computer. I assume > that if I put it in the wrong place that IDV will not find it. > > Donna Tucker http://chinook.phsx.ukans.edu/tucker.html > Associate Professor 1251 Wescoe Hall Dr. > address@hidden Department of Physics and Astronomy > (785) 864-4738 University of Kansas > (785) 864-5262 (fax) Lawrence, KS 66045-7582 > ---------- > X-Sun-Data-Type: default > X-Sun-Data-Description: default > X-Sun-Data-Name: idverr.t > X-Sun-Charset: us-ascii > X-Sun-Content-Lines: 72 > > An exception has occurred > In getViewManager > Canvas3D: null GraphicsConfigurationjava.lang.NullPointerException: Canvas3D: > null GraphicsConfiguration > at javax.media.j3d.Canvas3D.<init>(Canvas3D.java:1093) > at javax.media.j3d.Canvas3D.<init>(Canvas3D.java:1058) > at visad.java3d.VisADCanvasJ3D.<init>(VisADCanvasJ3D.java:91) > at visad.java3d.DisplayPanelJ3D.<init>(DisplayPanelJ3D.java:56) > at visad.java3d.DisplayImplJ3D.initialize(DisplayImplJ3D.java:367) > at visad.java3d.DisplayImplJ3D.initialize(DisplayImplJ3D.java:342) > at visad.java3d.DisplayImplJ3D.<init>(DisplayImplJ3D.java:227) > at visad.java3d.DisplayImplJ3D.<init>(DisplayImplJ3D.java:215) > at visad.java3d.DisplayImplJ3D.<init>(DisplayImplJ3D.java:185) > at > ucar.unidata.view.geoloc.MapProjectionDisplayJ3D.<init>(MapProjectionDisplayJ3D.java:128) > at > ucar.unidata.view.geoloc.MapProjectionDisplay.getInstance(MapProjectionDisplay.java:157) > at ucar.unidata.idv.MapViewManager.init(MapViewManager.java:312) > at ucar.unidata.idv.ViewManager.init(ViewManager.java:261) > at ucar.unidata.idv.MapViewManager.<init>(MapViewManager.java:269) > at > ucar.unidata.idv.IntegratedDataViewer.getViewManager(IntegratedDataViewer.java:2422) > at > ucar.unidata.idv.IntegratedDataViewer.getViewManager(IntegratedDataViewer.java:2400) > at ucar.unidata.idv.DefaultIdv.doMakeContents(DefaultIdv.java:127) > at > ucar.unidata.idv.IntegratedDataViewer.initGui(IntegratedDataViewer.java:2081) > at > ucar.unidata.idv.IntegratedDataViewer.initGui(IntegratedDataViewer.java:2045) > at > ucar.unidata.idv.IntegratedDataViewer.init(IntegratedDataViewer.java:891) > at ucar.unidata.idv.DefaultIdv.<init>(DefaultIdv.java:116) > at ucar.unidata.idv.DefaultIdv.main(DefaultIdv.java:138) > An exception has occurred > Initializing the GUI > nulljava.lang.NullPointerException > at > ucar.unidata.idv.IntegratedDataViewer.initWindow(IntegratedDataViewer.java:2139) > at ucar.unidata.idv.DefaultIdv.doMakeContents(DefaultIdv.java:128) > at > ucar.unidata.idv.IntegratedDataViewer.initGui(IntegratedDataViewer.java:2081) > at > ucar.unidata.idv.IntegratedDataViewer.initGui(IntegratedDataViewer.java:2045) > at > ucar.unidata.idv.IntegratedDataViewer.init(IntegratedDataViewer.java:891) > at ucar.unidata.idv.DefaultIdv.<init>(DefaultIdv.java:116) > at ucar.unidata.idv.DefaultIdv.main(DefaultIdv.java:138) > An exception has occurred > In getViewManager > Canvas3D: null GraphicsConfigurationjava.lang.NullPointerException: Canvas3D: > null GraphicsConfiguration > at javax.media.j3d.Canvas3D.<init>(Canvas3D.java:1093) > at javax.media.j3d.Canvas3D.<init>(Canvas3D.java:1058) > at visad.java3d.VisADCanvasJ3D.<init>(VisADCanvasJ3D.java:91) > at visad.java3d.DisplayPanelJ3D.<init>(DisplayPanelJ3D.java:56) > at visad.java3d.DisplayImplJ3D.initialize(DisplayImplJ3D.java:367) > at visad.java3d.DisplayImplJ3D.initialize(DisplayImplJ3D.java:342) > at visad.java3d.DisplayImplJ3D.<init>(DisplayImplJ3D.java:227) > at visad.java3d.DisplayImplJ3D.<init>(DisplayImplJ3D.java:215) > at visad.java3d.DisplayImplJ3D.<init>(DisplayImplJ3D.java:185) > at > ucar.unidata.view.geoloc.MapProjectionDisplayJ3D.<init>(MapProjectionDisplayJ3D.java:128) > at > ucar.unidata.view.geoloc.MapProjectionDisplay.getInstance(MapProjectionDisplay.java:157) > at ucar.unidata.idv.MapViewManager.init(MapViewManager.java:312) > at ucar.unidata.idv.ViewManager.init(ViewManager.java:261) > at ucar.unidata.idv.MapViewManager.<init>(MapViewManager.java:269) > at > ucar.unidata.idv.IntegratedDataViewer.getViewManager(IntegratedDataViewer.java:2422) > at > ucar.unidata.idv.IntegratedDataViewer.getViewManager(IntegratedDataViewer.java:2400) > at > ucar.unidata.idv.IntegratedDataViewer.getViewManager(IntegratedDataViewer.java:2379) > at > ucar.unidata.idv.control.ImageSequenceControl.init(ImageSequenceControl.java:126) > at > ucar.unidata.idv.control.DisplayControlImpl.init(DisplayControlImpl.java:1161) > at > ucar.unidata.idv.control.DisplayControlImpl.init(DisplayControlImpl.java:480) > at > ucar.unidata.idv.ControlDescriptor.initControl(ControlDescriptor.java:269) > at > ucar.unidata.idv.ControlDescriptor.access$000(ControlDescriptor.java:63) > at > ucar.unidata.idv.ControlDescriptor$1.run(ControlDescriptor.java:254) > at ucar.unidata.util.Misc$1.run(Misc.java:976) > An exception has occurred > ControlDescriptor.Creating display > nulljava.lang.NullPointerException > at > ucar.unidata.idv.control.ImageSequenceControl.init(ImageSequenceControl.java:126) > at > ucar.unidata.idv.control.DisplayControlImpl.init(DisplayControlImpl.java:1161) > at > ucar.unidata.idv.control.DisplayControlImpl.init(DisplayControlImpl.java:480) > at > ucar.unidata.idv.ControlDescriptor.initControl(ControlDescriptor.java:269) > at > ucar.unidata.idv.ControlDescriptor.access$000(ControlDescriptor.java:63) > at > ucar.unidata.idv.ControlDescriptor$1.run(ControlDescriptor.java:254) > at ucar.unidata.util.Misc$1.run(Misc.java:976) > -- **************************************************************************** Unidata User Support UCAR Unidata Program 303 497 8643 P.O. Box 3000 address@hidden Boulder, CO 80307 ---------------------------------------------------------------------------- Unidata WWW Service http://my.unidata.ucar.edu/content/support ****************************************************************************