Bug 544614 - screen: terminal not cleared when detaching from/exiting a screen session
Summary: screen: terminal not cleared when detaching from/exiting a screen session
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Fedora
Classification: Fedora
Component: screen
Version: 12
Hardware: All
OS: Linux
low
medium
Target Milestone: ---
Assignee: Miroslav Lichvar
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2009-12-05 17:59 UTC by Erik Johnson
Modified: 2010-12-04 02:10 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2010-12-04 02:10:22 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Erik Johnson 2009-12-05 17:59:50 UTC
Description of problem:
When detaching from a screen session, the terminal is not cleared and restored to the state it was prior to invoking screen.

Version-Release number of selected component (if applicable):
screen-4.0.3-15.fc12.x86_64

How reproducible:
text from ncurses-based apps stays on the screen if you are within an ncurses app when you detach.

Steps to Reproduce:
1. invoke screen
2. open an ncurses-based app (i.e. mutt, ncmpc, etc.)
3. detach
  
Actual results:
text from the ncurses app stays on the terminal after detaching/exiting.

Expected results:
terminal should return to its previous state.

Additional info:
This is new to Fedora 12, I am not experiencing this on my Fedora 11 box.

Comment 1 Erik Johnson 2009-12-10 05:44:50 UTC
I've narrowed down the issue to the screenrc patch. Commenting that out in the spec file and rebuilding gets rid of the issue. Maybe this is being caused by some of the termcap/terminfo lines? Unfortunately I don't have any understanding of termcap/terminfo syntax.

Comment 2 Erik Johnson 2009-12-10 05:54:04 UTC
I'd like to add that there was a secondary problem that was also (apparently) resolved by not using the screenrc patch:

When starting mutt from a window within a screen session, the cursor keys would completely stop working within screen. Some further troubleshooting led to the realization that screen was sending the Application Mode command sequence (for instance, \033OA instead of \033[A for the up cursor). I would have to detach and run "echo -e '\033>'" to toggle Application Mode back to off and regain the use of my cursor keys.

Since rebuilding without the screenrc patch, this problem also appears to be gone.

Comment 3 Erik Johnson 2009-12-10 06:00:19 UTC
Nevermind, the Application Mode issue still exists. I will open a separate bug report for it.

(In reply to comment #2)
> I'd like to add that there was a secondary problem that was also (apparently)
> resolved by not using the screenrc patch:
> 
> When starting mutt from a window within a screen session, the cursor keys would
> completely stop working within screen. Some further troubleshooting led to the
> realization that screen was sending the Application Mode command sequence (for
> instance, \033OA instead of \033[A for the up cursor). I would have to detach
> and run "echo -e '\033>'" to toggle Application Mode back to off and regain the
> use of my cursor keys.
> 
> Since rebuilding without the screenrc patch, this problem also appears to be
> gone.

Comment 4 Miroslav Lichvar 2009-12-10 17:43:39 UTC
I don't see this in xterm or urxvt. Which terminal emulator are you using?

Can you try to narrow down exactly which line from the patch causes this?

Comment 5 Erik Johnson 2009-12-10 18:54:21 UTC
This is in xterm-color. I'll try to look at it later tonight.

Comment 6 Jonathan Abbey 2010-06-01 20:30:34 UTC
I am seeing this in gnome-terminal-2.30.1.1fc13, with screen-4.0.3.15.fc12.

I've found that setting TERM to 'linux' results in correct behavior but with TERM set to 'xterm', the problem is very annoyingly present.

Comment 7 Bug Zapper 2010-11-04 04:15:35 UTC
This message is a reminder that Fedora 12 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
and issuing updates for Fedora 12.  It is Fedora's policy to close all
bug reports from releases that are no longer maintained.  At that time
this bug will be closed as WONTFIX if it remains open with a Fedora 
'version' of '12'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version prior to Fedora 12's end of life.

Bug Reporter: Thank you for reporting this issue and we are sorry that 
we may not be able to fix it before Fedora 12 is end of life.  If you 
would still like to see this bug fixed and are able to reproduce it 
against a later version of Fedora please change the 'version' of this 
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The process we are following is described here: 
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Comment 8 Bug Zapper 2010-12-04 02:10:22 UTC
Fedora 12 changed to end-of-life (EOL) status on 2010-12-02. Fedora 12 is 
no longer maintained, which means that it will not receive any further 
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of 
Fedora please feel free to reopen this bug against that version.

Thank you for reporting this bug and we are sorry it could not be fixed.


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