From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: William Paul Vrotney Newsgroups: gmane.emacs.bugs Subject: Eamcs 22.1 comint-scroll-show-maximum-output bug Date: Thu, 16 Aug 2007 20:28:11 -0700 Message-ID: NNTP-Posting-Host: lo.gmane.org X-Trace: sea.gmane.org 1187336604 19266 80.91.229.12 (17 Aug 2007 07:43:24 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Fri, 17 Aug 2007 07:43:24 +0000 (UTC) To: bug-gnu-emacs@gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Aug 17 09:43:19 2007 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1ILwUF-0000NA-EL for geb-bug-gnu-emacs@m.gmane.org; Fri, 17 Aug 2007 09:43:15 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1ILwUF-0006ZW-0v for geb-bug-gnu-emacs@m.gmane.org; Fri, 17 Aug 2007 03:43:15 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1ILsRF-0005M2-08 for bug-gnu-emacs@gnu.org; Thu, 16 Aug 2007 23:23:53 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1ILsRE-0005Kr-15 for bug-gnu-emacs@gnu.org; Thu, 16 Aug 2007 23:23:52 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1ILsRD-0005Ki-SL for bug-gnu-emacs@gnu.org; Thu, 16 Aug 2007 23:23:51 -0400 Original-Received: from pop-cowbird.atl.sa.earthlink.net ([207.69.195.68]) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1ILsRD-00012D-Ll for bug-gnu-emacs@gnu.org; Thu, 16 Aug 2007 23:23:51 -0400 Original-Received: from dialup-4.246.39.192.dial1.sanjose1.level3.net ([4.246.39.192] helo=vnex.localdomain) by pop-cowbird.atl.sa.earthlink.net with esmtp (Exim 3.36 #1) id 1ILsRB-0007Nc-00 for bug-gnu-emacs@gnu.org; Thu, 16 Aug 2007 23:23:50 -0400 FCC: ~/rmail/sent X-Detected-Kernel: Solaris 8 (1) X-Mailman-Approved-At: Fri, 17 Aug 2007 03:43:13 -0400 X-BeenThere: bug-gnu-emacs@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:16375 Archived-At: BUG DESCRIPTION: First noticed in Emacs 22.1. The comint variable comint-scroll-show-maximum-output does not work as documented when set to nil. For example when setting this variable to nil when using M-x shell the Emacs 22.1 manual says 41.7 Shell Mode Options If `comint-scroll-show-maximum-output' is non-`nil', then arrival of output when point is at the end tries to scroll the last line of text to the bottom line of the window, showing as much useful text as possible. (This mimics the scrolling behavior of most terminals.) The default is `t'. BUG REPLICATION: Emacs source: from http://ftp.gnu.org emacs-22.1.tar.gz Build: Simply: configure; make; make install; Emacs M-x version: Its value is "22.1.1" Operating System: Fedora core 3 Emacs Invocation: emacs -q Then if you then do the following M-x set-variable comint-scroll-show-maximum-output nil M-x shell then once the shell buffer becomes full every output still scrolls the last line of text to the bottom as it does when comint-scroll-show-maximum-output is set to t. I've tried setting this variable in all possible ways: before/after running M-x shell and using 'setq' in ~/.emacs, 'M-x set-variable' and 'M-x customize. But with all the same results as explained above. OTHER INFORMATION: The M-x shell defaults to running the bash shell. ADDITIONAL RELATED BUG: When I run the command M-x shell with comint-scroll-show-maximum-output set to nil the shell buffer window does not show the first line of bash shell output. In my case it the first line of my two line prompt. If I type M-x recenter then the first line of bash shell output comes into view in the buffer window. PATCH: If I use Emacs 22.1 but load in my ~/.emacs the comint.elc from Emacs 21.3 then all works fine as it did for Emacs 23.1 and earlier.