Hi, Miles Gazic wrote: > On a 2.8GHz Pentium 4, 1GB RAM, ATI Radeon HD 2400 Series video card, > ATI driver version 8.471.0.0. Built qt-win-opensource-src-4.5.0-beta1 > from source using Visual C++ 2008 Express Edition with SP1. > > qtdemo has corrupted graphics, looks like when the horizontal sync > isn't working on a CRT (but just in that window, the rest of the LCD > is fine :D). Or like if you have textures and a framebuffer without > the same pixel size. No command-line output or errors of any kind. > The app ran without crashing, and I could click the UI (if I guessed > the right place to click). > > Let me know if there's any other info needed. > > Thanks, > Miles > > PS: Image here: > http://picasaweb.google.com/miles.gazic/Qt#5294269856092205346
That looks bad indeed. If you press "1" while the Qt Demo is running, you'll get information about which rendering system is being used. I assume it's using OpenGL in this case. Do you see similar behavior in any of the other OpenGL examples that's shipped with Qt? Do you know if this happens with Qt 4.4.x on the same system? It seems that the texture uploads are corrupted for some reason, and it might be related to the pixelbuffer object extension we use to upload textures (if it's supported by your card). You could try to disable that feature by commenting out the check for it in src/opengl/qgl.cpp (lines 1713-1719, in one of the bindTexture() overloads), recompile the GL module and see if that helps. Regards, -- Trond K. _______________________________________________ Qt4-preview-feedback mailing list [email protected] http://lists.trolltech.com/mailman/listinfo/qt4-preview-feedback
