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References:	<09c7b42a-7b8d-52b7-ce18-4e681eb51f05 AT towo DOT net> <20170214084537 DOT GD25846 AT calimero DOT vinschen DOT de> <09253e2d-af27-ddca-2b49-b65460440f69 AT towo DOT net> <6488d88d-f6b8-674d-692c-8372977a4707 AT redhat DOT com> <0da58793-0b76-1f13-aca3-06ed6aa83dc3 AT towo DOT net> <4bc220da-11d0-fd39-4691-27c6ec9cbbb8 AT towo DOT net> <59ecea04-2e3c-41af-9f4a-93a9b772a9e4 AT towo DOT net> <20170216124949 DOT GF3889 AT calimero DOT vinschen DOT de> <bb2239bd-8cc3-2992-1554-18a04736ace7 AT towo DOT net> <58A6A7E0 DOT 8070500 AT towo DOT net> <20170217094302 DOT GI3889 AT calimero DOT vinschen DOT de> <6bac1397-8542-8283-5146-4dffcce7c905 AT towo DOT net>
From:	Thomas Wolff <towo AT towo DOT net>
Message-ID:	<eae638e5-efec-fdd8-c690-dc16f777f409@towo.net>
Date:	Sat, 18 Feb 2017 23:45:46 +0100
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Am 17.02.2017 um 23:29 schrieb Thomas Wolff:
> Am 17.02.2017 um 10:43 schrieb Corinna Vinschen:
>> On Feb 17 08:36, Thomas Wolff wrote:
>>> Am 16.02.2017 um 21:32 schrieb Thomas Wolff:
>>>> Am 16.02.2017 um 13:49 schrieb Corinna Vinschen:
>>>>> There's an ESC sequence to change the codeset?  Do you mean the
>>>>> alternate codeset sequence \e[10m / \e[11m
>>>> Oh, that one! Thanks for mentioning, I had overlooked it and fixed
>>>> mintty now to consider it.
>>>>> or is there something more sophisticated?
>>>> I actually meant to adress
>>>> https://github.com/mintty/mintty/wiki/CtrlSeqs#locale and there is
>>>> also \e%G and \e%@.
>>>>
>>>> I just notice that later changing of the IUTF8 flag from the master
>>>> side does not seem to work on a Window 10 system (although it works
>>>> initially) while it does work on a Windows 7 system. Weird.
>>> Now tested on 2 Windows 7 systems and 2 Windows 10 systems. Does not
>>> work on Windows 10.
>>> Any idea?
Actually, I'm not sure but I think this problem only occurs if mintty is 
started in a non-UTF-8 locale.
If it's started in UTF-8, later switching seems to work.
The strace shows that errno is set to 88 ENOSYS at some place (but I 
don't know where).

>> Whatever you're observing, there's nothing Windows version-specific
>> here.  The tcsetattr function indiscriminately copies the incoming
>> termios structure over.  Maybe the bg_check function fails for some
>> reason?  Can you strace setting the flag via tcsetattr?
> Attached. There are lots of strace output even without interaction. 
> I've tried to isolate the switching moment tightly.
>> There should be some output from tcsetattr as well as from 
>> fhandler_termios::bg_check.
>>
>> Can you check?
> You mean the termios_printf trace? How would I activate it (without 
> recompiling cygwin)?
------
Thomas

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