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Re: Display hurtful on LCD screen with Wheezy



On 18/09/2012 22:52, Lisi wrote:
Hi, Lionel,

On Tuesday 18 September 2012 22:31:21 Lionel Trésaugues wrote:
I am experiencing a physical pain whenever I am in front of my
computer running either Debian (Wheezy) or Debian-based distributions
(such as Mint LMDE, XFCE or MATE edition). Switching from XFCE to MATE
doesn't lead to any improvements .

My eyes start to suffer and soon, I can feel that an headache is coming.
I sympathise, but I doubt that anyone else would be able to predict what you
need for your eyes.  That is such an individual matter.  Have you tried a
detailed analysis of the screen for all the distributions?

How important is it to you to be able to run Debian?  Would it be worth some
spectacles, or some new ones if you already wear them?  (This solution worked
for me.)

Have you tried any of the rpm distros?

I don't have this feeling at all when I am running either Ubuntu or
any Ubuntu-based distribution (Mint XFCE or Cinnamon edition).
But Ubuntu _is_ Debian based!  I don't like it myself, but if it solves your
problem, why not use it?

I tried to adjust the fonts using all the different combinations
available with dpkg-reconfigure fontconfig-config as well as playing
with the hinting and smoothing settings of the fonts without any
improvements.
It sounds to me more likely to be something to do with the refresh rate rather
than anything else.  A very slight difference could adequately  explain the
symptoms you are experiencing.
A minimum refresh rate of 72Hz is recommended (same as average human heart rate) to minimize optical discomfort that you seem to be suffering. Less than that the screen will often jump about and make it difficult to see properly. See if you can do something about
that.



Incidentally, do you know what changed immediately before this started to
happen?

Lisi




--
Martin


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