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Date: Tue, 19 Nov 2002 18:50:36 -0800 (Pacific Standard Time)
From: Jason Tiller <jtiller AT sjm DOT com>
To: cygwin AT cygwin DOT com
Subject: RE: 'less' can't determine terminal size?
In-Reply-To: <59A835EDCDDBEB46BC75402F4604D5528F74FB@elmer>
Message-ID: <Pine.WNT.4.44.0211191846430.1948-100000@WS-USSV-50244>
X-X-Sender: TilleJ01@[ussvml03]
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Content-Type: TEXT/PLAIN; charset=US-ASCII

Hi, Sergei, :)

On Tue, 19 Nov 2002, Sergei Okhapkin wrote:

> Looks like rxvt bug. Did you try xterm instead?

I don't know if I'd be so quick to implicate rxvt - it could just as
easily be my setup.  I would hardly describe myself as sophisticated
in these terminal issues - heck, most of the Unix tty model is beyond
me.

Setting '-tn' in the rxvt invocation to "xterm" (as opposed to "rxvt")
made no difference that I could detect.

Perhaps it is a bug, but I'd like to more digging, if you or someone
else could point me at things to target.

Thanks,

---Jason

> -----Original Message-----
> From: Jason Tiller [mailto:jtiller AT sjm DOT com]
> Sent: Tuesday, November 19, 2002 9:29 PM
> To: cygwin AT cygwin DOT com
> Subject: RE: 'less' can't determine terminal size?
>
>
> Hi, Again, Sergei, :)
>
> On Tue, 19 Nov 2002, Sergei Okhapkin wrote:
>
> > What is the output of "stty -a" inside rxvt window?
>
> In my fiddling, I tried adding '-geometry "80x25"' to my rxvt invocation
> just to see what would happen.  Strangest thing - my window size was
> *26* lines.  When I set -geometry to "80x24", rxvt opened up a *25* line
> window.
>
> Any idea why this might be happening?  In all cases, if I manually
> resize the window, this seems to "sync" things up and everything's
> kosher after that.
>
> Thanks for your help,
>
> ---Jason
>
> > -----Original Message-----
> > From: Tiller, Jason [mailto:jtiller AT sjm DOT com]
> > Sent: Tuesday, November 19, 2002 9:04 PM
> > To: 'cygwin AT cygwin DOT com'
> > Subject: 'less' can't determine terminal size?
> >
> >
> > Hi, All, :)
> >
> > I updated my installation recently, and I'm now suffering from an odd
> > problem with less.  I hope that somebody can point me in a direction
> > for my own investigations.  I had been running 1.3.12, I believe -
> > after the refresh on Friday my cygwin1.dll is at 1.3.15.  bash is
> > 2.05b.0(7).  I run bash via rxvt-2.7.2-14.  Here's my rxvt run
> > command:
> >
> > C:\WINNT\system32\cmd.exe /c start C:\cygwin\bin\rxvt.exe -tn "rxvt"
> > -fg grey -bg black -fn "Fixedsys" -sr -sl 5000 -e /bin/bash --login -i
> >
> > I believe these environment variables are relevant:
> >
> > TERM=rxvt
> > LESS=iFMSX# 8
> > CYGWIN=tty nontsec
> >
> > My problem is this: 'less' no longer properly updates the screen when
> > I scroll through a file.  Paging forward is fine, but when trying to
> > scroll by line ('j' or 'e'), 'less' tells me that it is moving through
>
> > the file, but the display doesn't update.  The status line (which '-M'
> > enables) shows the currently displayed lines changing ('75-97',
> > '76-98', 77-99', etc.), but the displayed data doesn't change.  Paging
>
> > forward again causes the screen to update properly.
> >
> > Also, when I scroll backward ('k'), the normally-blank command line
> > (bottom
> > line) becomes filled with the previous status line.  So, if I'm at the
>
> > bottom of the file and the bottom two lines are:
> >
> > =====>
> > .bash_profile lines 105-127/127 (END)
> >
> > <=====
> >
> > Then, after pressing 'k', the bottom two lines will read:
> >
> > =====>
> > .bash_profile lines 104-126/127 99%
> > .bash_profile lines 105-127/127 (END)
> > <=====
> >
> > This *seems* to mean to me that 'less' can't determine the right size
> > my rxvt window.  My theory is reinforced because 'less' suddenly finds
>
> > its brains again when I resize the window manually.
> >
> > How should I go about fixing this?  Thanks in advance for any
> > pointers,
> >
> > ---Jason Tiller


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