[2018-01-07 14:11:35,843] [Log ] [MPMain ] [DEBUG] - Main: Device type is DBT_DEVTYP_DEVICEINTERFACE - Name: Intel(R) HD Graphics 4600
[2018-01-07 14:11:35,847] [Log ] [MPMain ] [INFO ] - Main: Video Device or Screen Intel(R) HD Graphics 4600 removed
[2018-01-07 14:11:53,537] [Log ] [MPMain ] [DEBUG] - Main: WM_DEVICECHANGE (Event: DBT_DEVICEARRIVAL)
[2018-01-07 14:11:53,541] [Log ] [MPMain ] [DEBUG] - Main: Device type is DBT_DEVTYP_DEVICEINTERFACE - Name: Intel(R) HD Graphics 4600
[2018-01-07 14:11:53,545] [Log ] [MPMain ] [INFO ] - Main: Video Device or Screen Intel(R) HD Graphics 4600 connected
[2018-01-07 14:11:53,549] [Log ] [MPMain ] [DEBUG] - GraphicContext: device video connected - Count 2
Can confirm startup with no black screen with v422. On startup you see MP-GUI, then for a short flicker the desktop, then again MP- GUI. Unfortunately the other blackscreen issue is unchanged. I have framerate 50p and DRR, if I play a video with 23 p, screen gets black, sound plays. I can refresh monitor by pressing volume up or down or Windows button or CTRL+Esc. If I stop video again, screen goes black again. Here logs