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From: Andrew Schulman <schulman DOT andrew AT epa DOT gov>
To: cygwin AT cygwin DOT com
Subject: [ANNOUNCEMENT] screen-4.6.2-3 (test)
Date: Tue, 16 Apr 2019 09:40:00 -0400
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screen-4.6.2-3 is now available as a test release in Cygwin. This release
includes a small change to the default /etc/screenrc, that has been
reported to fix a screen corruption problem that some users - okay, Shaddy
:) - have reported after detaching from screen[1,2].

If you're a screen user, it'd be helpful if you'd first determine if you
have the symptom: the cursor appearing in the middle of the terminal
buffer, intermingled with other lines of text, after you detach or exit a
screen session.

If you do have that problem, please install the test release and see if it
fixes it. Be sure that your /etc/screenrc is the same as the new default,
/etc/defaults/etc/screenrc. Or if you've customized /etc/screenrc, you can
just comment out the lines:

#
# Do not use xterms alternate window buffer.
# This one would not add lines to the scrollback buffer.
termcap xterm|xterms|xs ti=\E7\E[?47l
terminfo xterm|xterms|xs ti=\E7\E[?47l

Then report here what you found.

Even if you don't have the screen corruption problem, it'd be helpful to
test this release and report here whether it causes any problems for you.

Screen is a full-screen window manager that multiplexes a physical terminal
between several processes, typically interactive shells. Each virtual
terminal provides the functions of the DEC VT100 terminal and, in addition,
several control functions from the ANSI X3.64 (ISO 6429) and ISO 2022
standards (e.g., insert/delete line and support for multiple character
sets). There is a scrollback history buffer for each virtual terminal and a
copy-and-paste mechanism that allows the user to move text regions between
windows. When screen is called, it creates a single window with a shell in
it (or the specified command) and then gets out of your way so that you can
use the program as you normally would. Then, at any time, you can create
new (full-screen) windows with other programs in them (including more
shells), kill the current window, view a list of the active windows, turn
output logging on and off, copy text between windows, view the scrollback
history, switch between windows, etc. All windows run their programs
completely independent of each other. Programs continue to run when their
window is currently not visible and even when the whole screen session is
detached from the user's terminal.

Andrew E. Schulman

[1] https://cygwin.com/ml/cygwin/2019-04/msg00075.html
[2] https://cygwin.com/ml/cygwin/2019-04/msg00080.html


*******************************************************************


To update your installation, click on the "Install Cygwin now" link on
the http://cygwin.com/ web page.  This downloads setup.exe to your
system.  Then, run setup and answer all of the questions.

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