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Re: [PATCH linux-next V2] tty: Disable default console blanking interval

From "Austin S. Hemmelgarn" <ahferroin7@gmail.com>
Newsgroups linux.kernel
Subject Re: [PATCH linux-next V2] tty: Disable default console blanking interval
Date 2017-03-23 13:50 +0100
Message-ID <toalH-2iG-1@gated-at.bofh.it> (permalink)
References <tnOXV-3fe-35@gated-at.bofh.it> <tnQ3D-4lf-3@gated-at.bofh.it> <tnZTj-3jG-1@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 2017-03-22 21:32, Scot Doyle wrote:
> 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?
>
Unless you're dealing with ancient hardware, the difference in power 
usage is probably on the order of single digit micro-watts, which is not 
worth worrying about on almost anything you would expect to have a 
console display connected to.

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Thread

[PATCH linux-next] tty: Disable default console blanking interval Tim Gardner <tim.gardner@canonical.com> - 2017-03-22 15:00 +0100
  Re: [PATCH linux-next] tty: Disable default console blanking interval "Austin S. Hemmelgarn" <ahferroin7@gmail.com> - 2017-03-22 15:20 +0100
  Re: [PATCH linux-next] tty: Disable default console blanking interval Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-03-22 16:00 +0100
  [PATCH linux-next V2] tty: Disable default console blanking interval Tim Gardner <tim.gardner@canonical.com> - 2017-03-22 16:10 +0100
    Re: [PATCH linux-next V2] tty: Disable default console blanking  interval Scot Doyle <lkml14@scotdoyle.com> - 2017-03-23 02:40 +0100
      Re: [PATCH linux-next V2] tty: Disable default console blanking  interval "Austin S. Hemmelgarn" <ahferroin7@gmail.com> - 2017-03-23 13:50 +0100
        Re: [PATCH linux-next V2] tty: Disable default console blanking  interval Scot Doyle <lkml14@scotdoyle.com> - 2017-03-24 03:30 +0100
  Re: [PATCH linux-next] tty: Disable default console blanking interval Adam Borowski <kilobyte@angband.pl> - 2017-03-23 03:10 +0100

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