Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753483AbdCWBjV (ORCPT ); Wed, 22 Mar 2017 21:39:21 -0400 Received: from mx.scotdoyle.com ([45.32.201.2]:41066 "EHLO mx.scotdoyle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751164AbdCWBjM (ORCPT ); Wed, 22 Mar 2017 21:39:12 -0400 X-Greylist: delayed 399 seconds by postgrey-1.27 at vger.kernel.org; Wed, 22 Mar 2017 21:39:12 EDT Date: Wed, 22 Mar 2017 20:32:30 -0500 (CDT) From: Scot Doyle To: Tim Gardner cc: linux-kernel@vger.kernel.org, Greg Kroah-Hartman , Jiri Slaby , Adam Borowski Subject: Re: [PATCH linux-next V2] tty: Disable default console blanking interval In-Reply-To: <1490195240-16372-1-git-send-email-tim.gardner@canonical.com> Message-ID: References: <1490190632-10464-1-git-send-email-tim.gardner@canonical.com> <1490195240-16372-1-git-send-email-tim.gardner@canonical.com> User-Agent: Alpine 2.20 (DEB 67 2015-01-07) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 570 Lines: 12 On Wed, 22 Mar 2017, Tim Gardner wrote: > BugLink: http://bugs.launchpad.net/bugs/869017 > > Console blanking is not enabling DPMS power saving (thereby negating any > power-saving benefit), and is simply turning the screen content blank. This > means that any crash output is invisible which is unhelpful on a server > (virtual or otherwise). > > Furthermore, CRT burn in concerns should no longer govern the default case. > Affected users could always set consoleblank on the kernel command line. Does screen blanking save some power by disabling the cursor blink?