[konsole] [Bug 415463] New: konsole stops updating after setting a long title

[Ivan Kozik]

https://bugs.kde.org/show_bug.cgi?id=415463

            Bug ID: 415463
           Summary: konsole stops updating after setting a long title
           Product: konsole
           Version: master
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: major
          Priority: NOR
         Component: general
          Assignee: konsole-devel at kde.org
          Reporter: ivan at ludios.org
  Target Milestone: ---

SUMMARY

On konsole master, this stops visually updating the terminal into which it is
entered:

echo -e '\e]0;very long string very long string very long string very long
string very long string very long string very long string very long string very
long string very long string very long string very long string very long string
very long string very long string very long string very long string very long
string very long string\a'

You may need to make the string longer if you have a very wide monitor.

Note that konsole still processes input (you can `exit<Enter>`).

I encountered this bug while I was using zsh with:

# preexec is run after you hit Enter, but before the command is run
preexec() {
        # Set the terminal title to 'hostname# the command being run'
        #
        # See http://www.zsh.org/mla/users/2004/msg00948.html
        # "Re: question about quoting % in preexec" to understand
        # the escaping strategy here.
        print -Pn '\e]0;%m# '
        print -rn -- "$1"
        print -Pn '\a'
}

konsole 19.08.3 works fine, so this regressed somewhere after that and before
4444f288940184c479f5d9aad17b718f702a3ce9. I tested on NixOS master, x86_64.




STEPS TO REPRODUCE
1. Build and run konsole master
2. Run the echo -e command above
3. Observe apparently stuck console, no more visual updates

I tested by applying
https://gist.github.com/ivan/ec0fabe224e32c99a25f65eaabf65d72 onto nixpkgs
master

OBSERVED RESULT


EXPECTED RESULT


SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: NixOS master
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 5.64.0
Qt Version: Qt 5.12.6 (built against 5.12.6)

ADDITIONAL INFORMATION

-- 
You are receiving this mail because:
You are the assignee for the bug.