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momcilo	2011-09-16 , 14:31
Posts: 673 \| Thanked: 856 times \| Joined on Mar 2006	#1

I think this should be interesting to investigate:

https://launchpad.net/redshift

http://stereopsis.com/flux/linux.html

Especially if you are using your devices under low-light conditions.

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Last edited by momcilo; 2011-09-16 at 20:45.

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stlpaul	2011-09-16 , 14:37
Posts: 1,141 \| Thanked: 781 times \| Joined on Dec 2009 @ Magical Unicorn Land	#2

Since we have an ambient light sensor, maybe it could be used rather than lat/long lookups. Disabling the N900's auto brightness adjustment does not disable the ALS, so it could be used instead of brightness adjustments.

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jstokes	2011-09-16 , 14:40
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redshift would be better to look at. Not only is it actually open source (unlike f.lux), it also has two methods to change the "temperature" rather than just one

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momcilo	2011-09-16 , 14:59
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Originally Posted by jstokes

redshift would be better to look at. Not only is it actually open source (unlike f.lux), it also has two methods to change the "temperature" rather than just one

That is true, the source for xflux is not released. I've posted this one as an idea for maemo based light adjuster.

You meant: https://launchpad.net/redshift

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momcilo	2011-09-16 , 20:43
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I've tried the redshift this evening. In the evening I usually make all rooms darker.

It really feels better, turning of backlight makes it obvious.

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demolition	2011-09-16 , 21:34
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This seems very interesting. Are there any screenshots/images we can all see?

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momcilo	2011-09-16 , 22:20
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Originally Posted by demolition

This seems very interesting. Are there any screenshots/images we can all see?

There is a ppa for redshift at launchpad. The thing reduces amount of blue, the display becomes redish. It is easier to read in the dark.

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szopin	2011-09-19 , 19:34
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Have you tried it on device? It does seem interesting (doubt screenshots will help, as it is about current display settings in current ambient light)

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gregoranderson	2011-09-22 , 10:38
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Can't compile on scratchbox ; can't seem to get libxcb-randr0 (although it exists on the N900 itself)

Code:

[sbox-FREMANTLE_ARMEL: /usr/lib] > apt-cache search randr     
libxrandr-dev - X11 RandR extension library (development headers)
libxrandr2 - X11 RandR extension library
libxrandr2-dbg - X11 RandR extension library (debug package)
x11proto-randr-dev - X11 RandR extension wire protocol
[sbox-FREMANTLE_ARMEL: /usr/lib] >

Code:

Nokia-N900:/etc/apt# apt-cache search randr 
libxcb-randr0 - X C Binding, randr extension
libxrandr2 - X11 RandR extension library
Nokia-N900:/etc/apt#

Full Package Info:

Code:

Nokia-N900:/etc/apt# apt-cache showpkg libxcb-randr0
Package: libxcb-randr0
Versions: 
1.1.92-2downgraded (/var/lib/apt/lists/downloads.maemo.nokia.com_fremantle_ssu_203_._Packages) (/var/lib/dpkg/status)
 Description Language: 
                 File: /var/lib/apt/lists/downloads.maemo.nokia.com_fremantle_ssu_203_._Packages
                  MD5: adb389382ef0d8f0e2a3de70afef6284

Reverse Depends: 
  ohm-plugins-misc,libxcb-randr0
  mp-fremantle-203-pr,libxcb-randr0 1.1.92-2downgraded
Dependencies: 
1.1.92-2downgraded - libc6 (2 2.5.0-1) libxcb1 (0 (null)) 
Provides: 
1.1.92-2downgraded - 
Reverse Provides: 
Nokia-N900:/etc/apt#

Sadly Nokia not allowing me to added this repo to my sbox (even though I added the https method to apt).

Any thoughts?

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momcilo	2011-09-22 , 11:15
Posts: 673 \| Thanked: 856 times \| Joined on Mar 2006	#10

Originally Posted by gregoranderson

Can't compile on scratchbox ; can't seem to get libxcb-randr0 (although it exists on the N900 itself)

Code:

[sbox-FREMANTLE_ARMEL: /usr/lib] > apt-cache search randr     
libxrandr-dev - X11 RandR extension library (development headers)
libxrandr2 - X11 RandR extension library
libxrandr2-dbg - X11 RandR extension library (debug package)
x11proto-randr-dev - X11 RandR extension wire protocol
[sbox-FREMANTLE_ARMEL: /usr/lib] >

Code:

Nokia-N900:/etc/apt# apt-cache search randr 
libxcb-randr0 - X C Binding, randr extension
libxrandr2 - X11 RandR extension library
Nokia-N900:/etc/apt#

Full Package Info:

Code:

Nokia-N900:/etc/apt# apt-cache showpkg libxcb-randr0
Package: libxcb-randr0
Versions: 
1.1.92-2downgraded (/var/lib/apt/lists/downloads.maemo.nokia.com_fremantle_ssu_203_._Packages) (/var/lib/dpkg/status)
 Description Language: 
                 File: /var/lib/apt/lists/downloads.maemo.nokia.com_fremantle_ssu_203_._Packages
                  MD5: adb389382ef0d8f0e2a3de70afef6284

Reverse Depends: 
  ohm-plugins-misc,libxcb-randr0
  mp-fremantle-203-pr,libxcb-randr0 1.1.92-2downgraded
Dependencies: 
1.1.92-2downgraded - libc6 (2 2.5.0-1) libxcb1 (0 (null)) 
Provides: 
1.1.92-2downgraded - 
Reverse Provides: 
Nokia-N900:/etc/apt#

Sadly Nokia not allowing me to added this repo to my sbox (even though I added the https method to apt).

Any thoughts?

I've tried on diablo (all packages present) and failed to configure

I think the configure script might be broken.

BTW: after several days of using redshift on my laptop, I think it really works better than dimming of the screen. If combined with dimming it works great for my eyes.

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Last edited by momcilo; 2011-09-22 at 11:18.