Black screen on Kaby Lake GT2

Currently, I see the black screen with the following configuration:

```
    Vendor: Intel Open Source Technology Center (0x8086)
    Device: Mesa DRI Intel(R) HD Graphics 620 (Kaby Lake GT2)  (0x5916)
    Version: 19.3.4
```

```
Qt version: Runtime 5.12.7, Compile 5.12.7
Plan: float32-opengl3.3-array
```

It seems that all plans are affected.
