Unsolved QOpenGl crash when using custom StyleSheet

[oncaphillis]

Hi,
When I use
QApplication::setStyleSheet in my application together with an QOpenGLWidget I get a crash with the following stack trace.

1 ?? 0x400a1a7f
2 ?? 0x7fffb9e2d054
3 ?? 0x7fffb9a18778
4 QOpenGLFunctions::glDrawArrays qopenglfunctions.h 716 0x7fffef12c181
5 QOpenGLTextureBlitterPrivate::blit qopengltextureblitter.cpp 200 0x7fffef12c181
6 QOpenGLTextureBlitter::blit qopengltextureblitter.cpp 361 0x7fffef12caf8
7 blit qplatformbackingstore.cpp 254 0x7fffef0984bf
8 QPlatformBackingStore::composeAndFlush qplatformbackingstore.cpp 297 0x7fffef098c0e
9 QXcbBackingStore::composeAndFlush qxcbbackingstore.cpp 421 0x7fffe1e6ed97
10 QWidgetBackingStore::qt_flush qwidgetbackingstore.cpp 114 0x7fffef3a895b
11 QWidgetBackingStore::sync qwidgetbackingstore.cpp 945 0x7fffef3ac0f7
12 QWidgetWindow::event qwidgetwindow.cpp 255 0x7fffef3fda43
13 QApplicationPrivate::notify_helper qapplication.cpp 3716 0x7fffef39e05c
14 QApplication::notify qapplication.cpp 3499 0x7fffef3a3516
... <More>

The minimal StyleSheet that blows up seems to be

QWidget { color: white; }

That's under Qt 5.2.1 and Ununtu 16.0.4

Is that a known issue ?

Thx

[mostefa]

Hi @oncaphillis

How are you calling QApplication::setStyleSheet? and in which function you are calling it?

Is it possible to share a minimal sample code that leads to this crash?

[SGaist]

Hi,

In addition to what @mostefa wrote, are you locked to 5.2.1 ? Current version of Qt 5.8.0 with 5.6.2 as LTS, so it would likely be better to upgrade before trying to find a bug that might have been fixed in a more recent version.

[oncaphillis]

I have easy access to Qt5.5.1 and it seems to be gone -- Thx