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Re: terminal getting garbled running 'emacs -nw'

From: dhruva
Subject: Re: terminal getting garbled running 'emacs -nw'
Date: Sat, 9 Aug 2014 15:15:11 -0700

I suspect the problem happens when the cursor moves to the modeline. When you do the page-up and page-down, at some point you will notice the cursor on the mode line. After that, you will see the minibuffer height increase and the garbling starts.

To me, it appears like the count of lines/rows in the frame during the scrolling is off by 1. This has a domino effect on subsequent page up and down and ends up messing the modeline and the menubar.

Well, this is just a hypothesis based on observation.


On Sat, Aug 9, 2014 at 2:14 PM, dhruva <address@hidden> wrote:
I agree. Once you reproduce the problem with the first approach, the second flow reproduces it again. I am suspecting if we are somehow corrupting the tty.

I am happy that you could reproduce it. Give me some pointers and I will debug. By the way, it has been a long (almost 5 years) since I started following emacs-devel closely.
Nice to see the same familiar hackers hacking away on emacs.

with best regards,

On Sat, Aug 9, 2014 at 12:06 PM, Eli Zaretskii <address@hidden> wrote:
> Date: Sat, 9 Aug 2014 10:03:17 -0700
> From: dhruva <address@hidden>
> I found an easier way to reproduce the problem.
> - Run emacs in terminal (-nw) mode: emacs -q -nw
> - M-x to enger minibuffer prompt
> - Type 'ho' and hit TAB
> - CTRL-g will quit the command but the menubar is gone and the minibuffer
> frame is multiple lines high

This doesn't reproduce the problem for me (your previous recipe did).

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