On Tuesday 13 January 2015 17:02:40 Dmitry Volosnykh wrote: > I've tried to capture the issue: see http://youtu.be/KUNyk2YWBaY > The flickering is more obvious in this video since capturing software > affecting performance. When running application with no video recording > there's no visual artifacts for about 15 seconds. Then the top of the green > bar visually looks like be shifted leftwards by a small offset which holds > on form the moment of its appearance. The height of this 'cap' may slightly > increase over time. This issue reproduces constantly.
Sounds like a lack of v-sync is causing tearing and over time the offset between the swapbuffers and screen refresh is changing. Is your monitor running at a standard refresh rate? Try forcing vsync in the control panel for your graphics card driver. At least nVidia provide an option for this. I'm not sure about AMD and Intel. Cheers, Sean -- Dr Sean Harmer | sean.har...@kdab.com | Managing Director UK Klarälvdalens Datakonsult AB, a KDAB Group company Tel. Sweden (HQ) +46-563-540090, USA +1-866-777-KDAB(5322) KDAB - Qt Experts - Platform-independent software solutions _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
