Re: display autoadjust and blank screen

[Kristian B. <kb...@op...>]

On Thu, 2006-02-23 at 15:42 +0100, Yves-Alexis Perez wrote:
> On Thu, 2006-02-23 at 00:17 +0100, Yves-Alexis Perez wrote:
> > On Wed, 2006-02-22 at 21:39 +0100, Matthias Grimm wrote:
> > > Back to your question. It is not a bug. The responsible code is in
> > > module_display, function display_keyboard(), first part of the
> > > switch(changed){} statement, line 315-316.
> > > 
> > > When automatic mode is active, the brightness keys generate an offset
> > > that will be added to the value from the automatic brightness
> > > controller. This offset will be clipped if the overall brightness
> > > level is out of range. The limits are 1 or BRIGHTNESS_MAX.
> > 
> > ok
> > 
> > > 
> > > You might change the lower limit to 0 to be able to switch off your
> > > display completely also in automatic mode. But keep in mind that this
> > > value still depends on the ambient light level. That means if the
> > > environment goes darker, the backlight might be switched on again.
> > 
> 
> Ok, so, attached is a (dirty) patch which enable switching off the LCD
> while in automatic adjust mode. In order not to depends on the ambient
> light leve i've set the status to OFF, which works but may not be really
> clean.

This might be a bit late, but I made this script a while ago to handle
this. I do agree that pbbuttonsd should handle it with the buttons duh.

#!/bin/sh

# Do not autoadjust the lcd while blanking the screen.
pbbcmd config LCDAUTOADJUST 0

# It take some time to set the brightness to 0, wait until its done.
until [ "`pbbcmd query LCDBRIGHTNESS | sed -e 's/ //g'`" == "0" ]
do
    pbbcmd config LCDBRIGHTNESS 0
done

# Then check at regular interval to see if the user changed the brightness.
while [ "`pbbcmd query LCDBRIGHTNESS | sed -e 's/ //g'`" == "0" ]
do
    sleep 5
done

# Finish by resetting the autoadjust.
pbbcmd config LCDAUTOADJUST 1

--
Kristian