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Re: pty issue causes 'screen' to hang when run from mintty as detached
- From: Andy Koppe <andy dot koppe at gmail dot com>
- To: cygwin at cygwin dot com
- Date: Fri, 14 Jun 2013 12:57:54 +0100
- Subject: Re: pty issue causes 'screen' to hang when run from mintty as detached
- References: <51B63D88 dot 6000508 at codespunk dot com> <phscr81sr0kr02qenquh1s0na4n062u3so at 4ax dot com>
On 11 June 2013 01:51, Andrew Schulman wrote:
>> See here for additional information and reproducible steps in the mintty
>> support ticket:
>> I can reproduce this using cygwin 1.7.20, 1.7.19, 1.7.18, 1.7.15, and 1.7.7.
>> Screen does NOT hang when is is created by calling the first command
>> through cygwin started by cygwin.bat (commands typed through Windows
>> terminal 'cmd.exe' instead of mintty) and then attempting to attach
>> through mintty with the second command.
>> Workaround is to use:
>> 'cygstart --hide screen -S name -d -m'
> I get a little different result:
> $ screen -S scrn -d -m
> $ screen -S name -x
> Remove dead screens with 'screen -wipe'.
> and then I have to run 'reset' to get input echoing back.
> I've never observed this behavior before, because I always start screen as
> 'screen -AURD', which works fine.
> Do we have any idea whether the problem is with mintty or with screen?
I observed the same behaviour as the OP, but also reproduced it in
rxvt and xterm, so not a mintty issue. Since it works in a console,
the Cygwin pty layer has to be the main suspect, unless screen has
specfic code for Cygwin consoles or ptys?
Problem reports: http://cygwin.com/problems.html
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