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1

Wednesday, May 16th 2007, 2:50pm

Colour inversion (accessibility)

Hi there,

I'm a linux user, and I have issues with my vision - I find bright lights very unpleasant, causing killer headaches amongst other things. On my mac laptop (um, please don't hate me? *grins*) there is a feature where I can invert the colours, which makes for a vastly easier reading experience. I was wondering if there was a way to do this using KDE (or X, or at whatever level, really)? If so, I have not discovered it yet, but it would be an enormous help to myself and others. I'm using the themes to change the window colors etc to ones I find easier to deal with, but that does not help with applications over which I have less control, like web browsers, word processors, etc. Blanket inversion would be better, if it is possible! If it is not possible, is there any way to make it a feature request?

I'm new to KDE, and I've otherwise been really enjoying the experience - thank you for your hard work :).

-ao

2

Monday, January 10th 2011, 2:25am

I'm a linux user, and I have issues with my vision - I find bright lights very unpleasant, causing killer headaches amongst other things. On my mac laptop (um, please don't hate me? *grins*) there is a feature where I can invert the colours, which makes for a vastly easier reading experience. I was wondering if there was a way to do this using KDE (or X, or at whatever level, really)? If so, I have not discovered it yet, but it would be an enormous help to myself and others. I'm using the themes to change the window colors etc to ones I find easier to deal with, but that does not help with applications over which I have less control, like web browsers, word processors, etc. Blanket inversion would be better, if it is possible! If it is not possible, is there any way to make it a feature request?
Thankfully, there is a way, which is easier too :)
download binary of xcalib

try xcalib to get invert without kwin compositing and without opengl on any display card

Source code

1
xcalib -i -a


See :
http://forum.kde.org/viewtopic.php?f=111&t=92432

download from this page: or you can check your distro for xcalib
http://xcalib.sourceforge.net/

Hope it helps. Thanks.
I want peace, health, and happiness for all...

3

Monday, January 10th 2011, 6:09pm

Wow, this thread's a blast from the past :). Thank you very much - I'll give it a try!