Comment # 3 on bug 106594 from Kai

I was able to check for this behaviour on a system with an integrated Intel GPU
(HD Graphics 530 (Skylake GT2); PCIID: 0x1912) on Mesa 18.0.3 and it didn't
show these glitches.

The OpenGL error line ("==OPENGL==> [location 'Bitmap::ConvertToTexture Before
Texture Creation'] error code 0x502 (invalid operation)") is shown with the
Intel GPU as well.