Priority: P3: Somewhat important
Affects Version/s: 5.5.0, 5.6.0 Alpha
Fix Version/s: 5.6.0 RC
Component/s: GUI: Window management
NVidia Quadro FX 580 GPU
Proprietary nvidia driver 340.65
QTBUG-48545 I need to evaluate porting an application heavily using multiple (up to four) screens to xinerama.
While this works fine with Qt 4 I encounter problems with Qt 5. Instead of two separate screens only one huge screen is reported.
QTBUG-48545 you find a test application. Qt 4 correctly reports
while Qt 5 returns
qtdiag is confused as well
The problem shows up on machines configured with the proprietary nvidia driver. The very same works fine in Virtualbox.
My problem is now that for the given setup Qt 5 fails in multi screen mode with and without enabled xinerama while Qt 4 works fine.