XO BW mode (was Re: Guidance sought on collaboration techniques)
wadetb at gmail.com
Fri Feb 13 13:53:37 EST 2009
Ohhh, gotcha. I have only tried turning the brightness to off in dark
On Fri, Feb 13, 2009 at 1:27 PM, Gary C Martin <gary at garycmartin.com> wrote:
> On 13 Feb 2009, at 17:28, Wade Brainerd wrote:
> On Fri, Feb 13, 2009 at 11:38 AM, Gary C Martin <gary at garycmartin.com>
>> The below will switch to BW, but still leave the backlight on:
>> echo 1 > /sys/devices/platform/dcon/output
>> And to kill backlight and go to BW mode all at once:
>> echo 0 > /sys/class/backlight/dcon-bl/brightness
>> Hmmm, I wonder if there is dbus hooks for this for a less hacky solution.
>> Oh, cool - thanks! Isn't there any button on the XO mapped to this? How
>> is a normal user supposed to engage it?
> It simply engages BW/reflective mode when you dial down the brightness to
> off. Alt-brightness up and Alt-brightness down on the XO get you to
> reflective mode (and back) in one strike. In normal use, colour mode is
> still quite usable (though not as crisp as BW) in bright sunlight, it's just
> that the colours desaturate as the reflected light gets brighter.
> Note the backlight goes through the colour refractive screen magic, even in
> BW mode, so it's not as sharp as with the backlight 100% off and just using
> reflected light (though BW + backlight does still look slightly crisper than
> colour mode, to my eye, like sub pixel sharpening tricks on conventional
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