broken tmux layout

[krgrwrg]

Describe the problem:
Special characters on tmux make my layout broken.
I can't replicate this problem on putty or 'Termius', also in 'Konsole' and 'gnome-terminal' probelem not appears.
Same problem on different versions of tmux and Debian.

Tmux versions with problems:

• tmux 2.8 ( Debian 10.4 )
• tmux 2.3 ( Debian 8.11 )

Screenshot ( with censored tmux content )

To Reproduce:
I using tabby instead of putty on my windows corporate laptop for connect to linux host from home.

1. opening new terminal window with ssh connection to my workstation
2. then attaching to existing tmux session 'tmux a -t my_session'
3. special characters sometimes apeears and make my layout broken.
4. detaching from tmux session and re-attaching don't solve problem
5. then i close tabby tab and open same session again
6. 'tmux a -t my_session' - problem disappears

[enodr]

Hi, I just came here to open a similar issue with GNU screen. The layout is broken as you can see on this screenshot. The screen names should be on the last line of the terminal instead of beeing shifted up. The cursor is also wrongly placed.

[luxifr]

I also have similar issues using screen.

This is what mc looks like

As compared to what it should look like

Also, sometimes I get weird "question mark" characters like this � in the output:

When it's supposed to look like this:

[krgrwrg]

@luxifr - yes this is definitly same issue.

[luxifr]

here's another bread crumb: this error message pops up in the dev console when I run duf or open mc in screen

it does not appear when running these outside of screen

edit: I guess this was a red herring... after the next restart of tabby that error cannot be reproduced but the faulty behavior persists

[luxifr]

apparently those question mark characters are

U+FFFD	�	ef bf bd	REPLACEMENT CHARACTER

might be related to #6057

I also tried some tabby releases all the way back to version 143 to see if this might be some new regression but this issue has existed even in 143.

[luxifr]

@Eugeny if there's anything I can do to provide more info and to help solve this, please let me know... other than this issue I really love Tabby - it's heaps better than any of the other alternatives on Windows and I use it daily for work and personal stuff but this issue is really crippling... not for the cosmetic issues like in the duf output, but something like mc becomes completely unusable in screen (and tmux, too, apparently)

[dage233]

same issue.
fix it plz.

[Eugeny]

Can you guys give this build a try? https://github.com/Eugeny/tabby/actions/runs/3838372546

GitHub

fixed exports · Eugeny/tabby@33d6d41

A terminal for a more modern age. Contribute to Eugeny/tabby development by creating an account on GitHub.

[enodr]

Looks good for me so far with gnu screen. Will test more tonight. Well done!

[luxifr]

Can you guys give this build a try? https://github.com/Eugeny/tabby/actions/runs/3838372546

GitHub**fixed exports · Eugeny/tabby@33d6d41**A terminal for a more modern age. Contribute to Eugeny/tabby development by creating an account on GitHub.

looking good!!! thanks man, you're awesome!

GitHub

fixed exports · Eugeny/tabby@33d6d41

A terminal for a more modern age. Contribute to Eugeny/tabby development by creating an account on GitHub.

[luxifr]

@Eugeny you have a new sponsor!

[Eugeny]

Thank you!

[enodr]

Hi, after extensive testing unfortunately problem is not fully solved. The isssue does not appear immediatly after opening a new tabby shell, but only after some time.

Two problems:

• displaying a file with very long lines, you can see a column break near the end of the screen

• bottom line (prompt) is shifted up:

[SuperPauly]

I'm still getting this issue. if Tabby is left in a window with no activity the Tmux bar from the bottom just appends on top of it's self until it fills the screen.