Public bug reported:

It is hard to provide evidence but the story is:

* I start 'tmux' or 'screen'.

* Everything works nicely until later, after I switch tabs/windows
within them.

* Then all my inputs behave as if I kept pressing the 'Ctrl' key, so
when I type "v" what is actually receive is Ctrl-v.

* If I reboot into kernel 5.15.0-102 with the same "root", that is the
same 'tmux' and 'screen' binaries, this does not happen.

* Apparently it does not happen inside an X terminal like 'xterm' or
'sakura', so I guess it is some weird bug in the console tty
"discipline" (to use an old UNIX term).

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: kernel modules packaging

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https://bugs.launchpad.net/bugs/2061685

Title:
  ULTS weird behaviour 'screen' 'tmux' (likely kernel error)

Status in linux package in Ubuntu:
  New

Bug description:
  It is hard to provide evidence but the story is:

  * I start 'tmux' or 'screen'.

  * Everything works nicely until later, after I switch tabs/windows
  within them.

  * Then all my inputs behave as if I kept pressing the 'Ctrl' key, so
  when I type "v" what is actually receive is Ctrl-v.

  * If I reboot into kernel 5.15.0-102 with the same "root", that is the
  same 'tmux' and 'screen' binaries, this does not happen.

  * Apparently it does not happen inside an X terminal like 'xterm' or
  'sakura', so I guess it is some weird bug in the console tty
  "discipline" (to use an old UNIX term).

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