Windows 10 64bit
Intel i5 3550 (with Intel HD Graphics 2500 integrated GPU, using built-in driver provided by Windows)
AMD Radeon RX480 4GB (with Radeon Software 17.5.2)
Broken: 2.78c official and recent builds
Short description of error
The bug requires opening a file which has saved in its configuration multiple windows on more than one display. If the second display is connected to a different GPU than the one used for the primary display, blender will crash upon opening the file. This issue may be driver-related and be triggered only on specific GPU/OS/Driver configurations.
Exact steps for others to reproduce the error
- Shift-drag a corner of the 3d viewport to create a new window
- Move the new window to a secondary display connected to a second GPU of a different vendor than that of the first GPU
- Save file
- Exit Blender
- Reopen the file
- Blender will crash.
Alternatively, open the attached .blend file to trigger this bug.
The file can be successfully opened if there is only one active display connected on a single GPU.