201412-16288:
Set 8086:1616 as the default graphic card, then execute plainbox, the issue does not reproduce.
Set 10de:1347 as the default graphic card, then execute plainbox, the issue does not reproduce.
201408-15470:
Set 8086:1616 as the default graphic card, then execute plainbox, the issue reproduces.
Set 1002:6664 as the default graphic card, then execute plainbox, the issue does not reproduce.
I chose 2 configs to test, (201412-16288 and 201408-15470)
201412-16288: Intel Corporation Broadwell-U Integrated Graphics [8086:1616] + NVIDIA Corporation Device [10de:1347]
201408-15470: Intel Corporation Broadwell-U Integrated Graphics [8086:1616] + Advanced Micro Devices, Inc. [AMD/ATI] Jet XT [Radeon R5 M240] [1002:6664]
201412-16288:
Set 8086:1616 as the default graphic card, then execute plainbox, the issue does not reproduce.
Set 10de:1347 as the default graphic card, then execute plainbox, the issue does not reproduce.
201408-15470:
Set 8086:1616 as the default graphic card, then execute plainbox, the issue reproduces.
Set 1002:6664 as the default graphic card, then execute plainbox, the issue does not reproduce.