Making Screen Even Dimmer Than Brightness Applet Allows

[Jamie Jackson-4]

Is there a config file, or some other way to get even more control
over screen brightness?

I'm particularly interested in getting a very dim screen for astronomy
purposes (where even the dimmest screen the brightness applet allows
for is way too bright for dark-adapted eyes).

I was very excited to see the brightness panel work start supporting
my machine in later versions of Ubuntu, by the way,  so thanks for
that! Before, my screen would get darker, but the backlight would stay
the same, so this is much better.

Thanks,
Jamie
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[Richard Hughes]

On Fri, 2008-08-01 at 23:32 -0400, Jamie Jackson wrote:
> Is there a config file, or some other way to get even more control
> over screen brightness?
>
> I'm particularly interested in getting a very dim screen for astronomy
> purposes (where even the dimmest screen the brightness applet allows
> for is way too bright for dark-adapted eyes).

Well, the embedded controller in most laptops gives typically 8 steps of
brightness -- I think the Macbook and Macbook Pro have 200ish although
they won't dim that low. At the end of the day most backlight CFL's are
designed for a high light output. You could try putting a polarising
filter in front of the TFT, that'll block some light.

All out of better ideas, sorry.

Richard.

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[Jamie Jackson-4]

On 8/5/08, Richard Hughes <hughsient@...> wrote:

> On Fri, 2008-08-01 at 23:32 -0400, Jamie Jackson wrote:
>  > Is there a config file, or some other way to get even more control
>  > over screen brightness?
>  >
>  > I'm particularly interested in getting a very dim screen for astronomy
>  > purposes (where even the dimmest screen the brightness applet allows
>  > for is way too bright for dark-adapted eyes).
>
>
> Well, the embedded controller in most laptops gives typically 8 steps of
>  brightness -- I think the Macbook and Macbook Pro have 200ish although
>  they won't dim that low. At the end of the day most backlight CFL's are
>  designed for a high light output. You could try putting a polarising
>  filter in front of the TFT, that'll block some light.
>
>  All out of better ideas, sorry.

No problem, thanks. I bought a roll of red cellophane that I'll try out.
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