[tex-live] Ghostscipt related problems with psv

[Akira Kakuto]

> GPL Ghostscript 9.25 (2018-09-13)
> ... ...

In the case of the present Ghostscript 9.26,
I obtain a different error on Windows 7:

**** Unable to open the display device, quitting.

I found that the message is a fatal error message
in idisp.c in Ghostscript.

Thus I suspect that the psv is not compatible with
the Ghostscript 9.25 and Ghostscript 9.26.

Best,
Akira