Hi J-S, > That said, if some are having problems, I'm all for fixing them. I > just don't want false information spread about the different display > modes for using multi-monitor (or OSG's support for them).
This was not my intention. I did try to be quite careful in my wording. I actually use Vista64 at work and XP64 at home, and yes it's also my experience that Vista DOES indeed work 100% well with multi-monitor. I've also found NO problems here. However my post I thought replied with my personal experience with OpenGL apps under the questioned XP with one particular mode. I've also seen non-OSG OpenGL apps crash and burn when spanned in XP multi-monitor mode so I don't think this is/was just OSG specific. Just to clarify - Vista work great! > I said, horizontal span is not an option on Vista - and I know some > people want to play the ostrich game, but XP will not be supported > forever and we will have to accept Vista someday. I agree! Most end-users I know were awaiting SP1 prior to deployment so hopefully we'll see more take up. It can't suit NVidia either to have to keep churning out quality 32 and 64-bit drivers for both XP and Vista forever given the difference in model... Just to clarify - Vista work great - OSG multi-monitor 100% wow ;-) Colin. Jean-Sébastien Guay wrote: > Hello Colin, > >> What I found works best for fullscreen apps over two monitors is NOT >> checking the Display "extend my desktop to this monitor" option, and >> then configuring a "horizontal span" in the NVidia settings dialog. >> Basically things work more reliably when Windows is not involved. >> In horizontal span Windows just sees things as one very wide display. > > The problem with this is that due to the changes in the Windows Driver > Model in Vista, this option is no longer available in the nVidia drivers > on this OS. You only have the multiple independent monitors option. > > For me, working with OSG from SVN on Vista for a long while, this has > worked great. osgViewer knows when you have multiple monitors (as > opposed to a single desktop of double the width, which is what you get > in horizontal span mode) and will set itself up correctly. If you have a > single view which you want to stretch over both monitors, it will create > a master camera which has no graphics context, and then two slave > cameras each with a graphics context on one of the two monitors. This > works really well. You can see how this is done by looking up > osgViewer::View::setUpViewAcrossAllScreens() and do it manually if you want. > >> if you want dual-screen performance and correctness >> choose span, and if you can accept some dual-screen OpenGL glitches >> choose multi-monitor ;-) > > To reiterate, multi-monitor works great. Have you tested it lately? In > any case, if it doesn't work right for some, we should fix it, since as > I said, horizontal span is not an option on Vista - and I know some > people want to play the ostrich game, but XP will not be supported > forever and we will have to accept Vista someday. > > That said, if some are having problems, I'm all for fixing them. I just > don't want false information spread about the different display modes > for using multi-monitor (or OSG's support for them). > > J-S _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
