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

[Austin S. Hemmelgarn]

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.