Qt Creator + Nvidia = broken qDebug()

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When build a project:

libGL error: No matching fbConfigs or visuals found
libGL error: failed to load driver: swrast

Everything is fine but I can't see messages from qDebug(). This is a problem. List of installed nvidia packages:

 % dnf list installed | grep nvidia                                                                                             ~ localhost
akmod-nvidia.x86_64                      1:346.72-2.fc22.1               @System
kmod-nvidia-4.0.4-301.fc22.x86_64.x86_64 1:346.72-2.fc22.1               @System
kmod-nvidia-4.0.4-303.fc22.x86_64.x86_64 1:346.72-2.fc22.1               @System
xorg-x11-drv-nvidia.x86_64               1:346.72-1.fc22                 @System
xorg-x11-drv-nvidia-kmodsrc.x86_64       1:346.72-1.fc22                 @System
xorg-x11-drv-nvidia-libs.i686            1:346.72-1.fc22                 @System
xorg-x11-drv-nvidia-libs.x86_64          1:346.72-1.fc22                 @System

I also have no framebuffer and guess that problem can be there. vga=775 does not solve the problem. Any ideas for how to get qDebug() work as it should?