Clearing the buffer after quitting LESS, MAN, VIM etc.

[Christopher Faylor]

On Tue, Dec 31, 2013 at 01:58:59PM -0500, Christopher Faylor wrote:
>On Tue, Dec 31, 2013 at 10:50:29AM +0100, Bengt Larsson wrote:
>>Dawid Ferenczy wrote:
>>>The only difference (or one of few) was in the display size. The old laptop
>>>has a screen resolution of 1366 x 768 pixels, while the new one has
>>>1920 x 1080. And I'm using the whole screen for the terminal window. It's
>>>really strange, but if the terminal window height is greater than
>>>cca 62 lines, the screen buffer is cleared after quitting the LESS, VIM
>>>etc. No matters if Cygwin is executed inside the ConEMu or plain cmd.exe.
>>>Making the terminal window smaller solved the problem. Window height
>>>of 62 lines seems to be fine for me. Also, with some of greater height
>>>values, the LESS/VIM process sometimes crashed.
>>
>>There does seem to be a problem with the Windows console. I have 64 bit
>>Windows 7, and when a console window height*width is bigger than about
>>16384, it starts clearing the window after "less". This is running
>>"less" from the Windows shell. Not only does it clear the screen, it
>>clears it to black, even though I have a different background color.
>>
>>With mintty and bash it works for me at least up to 383 rows and 1364
>>columns.
>
>That's because mintty uses entirely Cygwin mechanisms and the console
>uses Windows.  Windows has a limitation which we didn't know about.
>I'll fix this in the next couple of days.

This bug should be fixed in today's snapshot (when it shows up):

http://cygwin.com/snapshots/

It will, of course, be in the next Cygwin release but there is no fixed
date for when that will be available.

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