Details
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Bug
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Resolution: Invalid
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Not Evaluated
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None
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5.1.0 Beta 1, 5.1.0 RC1
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None
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Windows 7, Laptop Lenovo R400 7443-32G, Display GPU Intel Integrated Graphics 4500MHD, driver version 8.15.10.1855 (default, doesn't seem to be easily upgraded for "normal" consumers)
Description
Playing back video on certain laptops with the "Mobile Intel 4 Series express" GPUs does not work on Windows 7 using the Angle build of Qt.
The GPU seems to be "Intel Integrated Graphics 4500MHD". I've tested it on a Lenovo R400 laptop with type number 7443-32G. I've got the same issues on other laptops with the same chipset.
Playback seems to work fine except that the textures delivered are just black (but with correct size). They were received with the "present" method in a class inheriting QAbstractVideoSurface.
I did test this using the OpenGL build, here the video plays fine. However with OpenGL there are so many other graphical glitches so it cannot be used on these computers. Also, the video playback with OpenGL is currently broken (reported in QTBUG-31800).
I have also tested playback on more recent laptops with newer chipsets, here the video plays fine using Angle.