linux-kernel - Re: [PATCH] vt: disable console blanking by default

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Message-ID: <20140625133930.223cccb5@alan.etchedpixels.co.uk>
Date:	Wed, 25 Jun 2014 13:39:30 +0100
From:	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>
To:	Tomasz Torcz <tomek@...ebreaker.pl>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jslaby@...e.cz>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] vt: disable console blanking by default

On Wed, 18 Jun 2014 11:27:31 +0200
Tomasz Torcz <tomek@...ebreaker.pl> wrote:

> 
> >From ea7cf47e3230eda63aa6c46092719437f9bbae8e Mon Sep 17 00:00:00 2001
> From: Tomasz Torcz <tomek@...ebreaker.pl>
> Date: Wed, 18 Jun 2014 11:18:06 +0200
> Subject: [PATCH] vt: disable console blanking by default
> 
>   Remove default 10 minute blank interval. Instead: never blank by
>   default.
>   "Screensaving" is no longer useful.  Today it only provides
>   obstacle when interacting with text console, especially through
>   remote lights-out management solutions.

Screensaving is extremely useful as is power management, and power prices
are going up not down. We don't customise the upstream kernel just
because J Random User happens to want his defaults.

There are a couple of things you can sensibly do

1. Just turn it off in software. It's run time configurable via setterm

2. If you have a reliable way of detecting the presence of a remote
console device and that device supports reporting when a connection is
made/broken you could submit a patch to make it unblank on connect.

Alan
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