[Bug 2127106] Re: stty: invalid argument in Ubuntu 25.10 breaks Symfony Console and other CLI tools

[Buğra Osman Soysal]

I completely agree with @emk2203 . It is absoolutely not a medium
importance bug as it breaks nearly every single TUI.

I was about to make a campaing of installing Linux on the users that
still use Windows 10 and i was thinking about Ubuntu. Maybe i should use
Fedora then. non-lts branch doesnt means bleeding edge or testing
branch, Its disrespectful and you are not Arch

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to rust-coreutils in Ubuntu.
https://bugs.launchpad.net/bugs/2127106

Title:
  stty: invalid argument in Ubuntu 25.10 breaks Symfony Console and
  other CLI tools

Status in rust-coreutils:
  Unknown
Status in rust-coreutils package in Ubuntu:
  Triaged

Bug description:
  After upgrading to Ubuntu 25.10 (Questing), the stty command seems to return an invalid or non-standard argument format.
  This causes many interactive terminal applications (for example, Symfony Console) to fail when they attempt to change terminal settings.

  Example when running a Symfony command: php bin/console make:entity

  Class name of the entity to create or update (e.g. GrumpyKangaroo):
   > User
  stty: invalid argument '500:5:f00bf:8a3b:3:1c:7f:15:4:0:1:0:11:13:1a:0:12:f:17:16:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0'

  
  At this point, the terminal often stops showing what you type (echo is lost), and the only way to fix it is to run stty sane.

  Steps to reproduce

  Run on Ubuntu 25.10:
  stty -g
  Output example: 500:5:f00bf:8a3b:3:1c:7f:15:4:0:1:0:11:13:1a:0:12:f:17:16:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0

  php bin/console make:entity
  stty: invalid argument '500:5:f00bf:8a3b:...'
  Input visibility is lost — typed text does not appear.

To manage notifications about this bug go to:
https://bugs.launchpad.net/rust-coreutils/+bug/2127106/+subscriptions