Terminal prints garbage when moving cursor in Vim

[marcelomd]

I'm using a fresh install of Fedora 31 with Lxqt. while using Vim in the terminal, moving the cursor down leaves garbage (usually underlines/underscores or pipes) in the last "active line".

Expected Behavior

Cursor should move cleanly without printing garbage.

Current Behavior

Cursor leaves garbage when moving. Usually underscores/underlines at position 1. This happens when inserting a blank line, moving down, moving up and writing characters to a new line.

In the image below is my .vimrc. I opened the file and pressed arrow down +- 10 times. Note the underlined characters at position 1. Moving with "hjkl" does the same.

Sorry for the picture, the screenshot tool doesn't show the garbage.

Steps to Reproduce (for bugs)

1. Open a file with Vim. New or existing;
2. Start writing or moving the cursor;

Context

This is a fresh install of Fedora with Lxqt. I just installed my usual development packages (git, gcc, etc.). Nothing that would affect visuals.

System Information

• Fedora: Fedora release 31 (Thirty One)
• Kernel: Linux localhost.localdomain 5.3.8-300.fc31.x86_64 #1 SMP Tue Oct 29 14:28:41 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
• Lxqt: LXQt Version | 0.14.1
• Qt: Qt | 5.12.5
• qterminal: 0.14.1
• Vim: VIM - Vi IMproved 8.1 (2018 May 18, compiled Oct 30 2019 00:00:00)
  I don't know how to get the other versions (build and widget).

Thanks!

[agaida]

can't reproduce with rockstor and some epl repos - and to be honest: with rockstor i have some other issues :) - restarting terminals, lxqt-config chrashes if called from the menu etc. So maybe it's a matter of wong building order or poor symbol handling - or simple bad luck. Will not intsall F31 on real hardware to reproduce :D