[Bug] Rigol DS1054 broken screenshot

[akrpic77]

Describe the bug
Screenshot script (STOP\nDISP:DATA?) when using Rigol DS1054 produces broken image.

To Reproduce
Steps to reproduce the behavior:
Connect to your rigol ds1054, and issue screenshot (F1) command.

Expected behavior
A nice picture.

Screenshots

Desktop (please complete the following information):

• OS: Linux Debian/sid
• Version 0.21.0

Additional context
Maybe is this a Rigol ds1054 setting issue, tried dots/vector output type, but didn't change the outcome.
using USB usbtmc connection to the instrument.

[mvladic]

I can confirm the same problem exist in my case using Linux with USBTMC connection to Rigol DS1074Z. With Ethernet connection it works correctly and fast (over USBTMC is also very slow).

BTW On Windows it works correctly and very fast with USBTMC too.