nanogui: iPaq demo sources?
Subject:
Re: iPaq demo sources?
From:
Nils Faerber ####@####.####
Date:
3 Nov 2000 19:04:09 -0000
Message-Id: <00110320080506.00962@twincan>
On Fri, 03 Nov 2000, you wrote:
> Nils -
Hello Jordan (and others of course ;)
> I was under the impression that the power management in kernel test17
> was virtually nonexistent (except of course, for battery life
> monitoring). I am unaware of any code that will actually turn off the
Non existent is a bit too much.
There is the CPU clock scaler and PM based on APM is in the works.
> screen. So unless I am way off base, a screen blanker wouldn't be very
> useful at this point, since the power would still be running the screen,
> even if the screen is blank. Do you know of any code that will turn off
> the power to the screen? If so, I would love to see it, because that
You can turn the display off completely and thus save power:
ioctl(fd,FBIOBLANK,VESA_POWERDOWN)
does the trick.
> would make life really cool. Until then, I think that your best bet
> would be to just turn off the backlight, so you could save as much power
> as possible, but still see something on the screen.
This should just be phase 1. After more inactivity the display should shut off
completely and then after another timeout the whole thing should go to sleep.
> Let me know if I am barking up the wrong tree.
Hmm ... almost seems so ;)
> Happy hacking!
Also!
I have attached a complete blanker source. Now that you have my source would you
share nxscrtop's source with me?
> Jordan
CU
nils faerber
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