From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754366Ab1I2LTc (ORCPT ); Thu, 29 Sep 2011 07:19:32 -0400 Received: from science.horizon.com ([71.41.210.146]:49957 "HELO science.horizon.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751045Ab1I2LTa (ORCPT ); Thu, 29 Sep 2011 07:19:30 -0400 X-Greylist: delayed 471 seconds by postgrey-1.27 at vger.kernel.org; Thu, 29 Sep 2011 07:19:30 EDT Date: 29 Sep 2011 07:11:37 -0400 Message-ID: <20110929111137.31852.qmail@science.horizon.com> From: "George Spelvin" To: linux-kernel@vger.kernel.org Subject: Has anyone noticed text console breakage since 3.0? Cc: linux@horizon.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I'm currently running 3.1-rc7, and for a while, whenever I've been running a text console, I've noticed odd dropouts and glitches. It used to be mostly ANSI control sequences for fancy graphics. welcome2l's splach screen would get some rows shifted left as characters were skipped, and "aptitude -u" (which shows multiple animated progresss bars) would suffer a lot. But now it's getting to the point that just typing this e-mail in black & white is experiencing multiple corruptions. What's on my screen is "the poin hthat" and "black w white". I expect turning off the "ruler" feature in vim which maintains a cursor position display at the bottom of the screen will reduce the problem, but I've seen problems at the shell prompt. This is a quad-core Phenom processor, running a 64-bit kernel on ECC memory. The hardware has been stable for years. The problem is specifically with a *text* console, not a frame buffer console. If nobody's sure, I can take a few hours and do a bisect run, but it seems hard to believe I'm the only person seeing this.