Vadim Plessky <[EMAIL PROTECTED]> writes:

> On Saturday 06 July 2002 6:57 am, Owen Taylor wrote:
> |  Vadim Plessky <[EMAIL PROTECTED]> writes:
> |  > On Monday 24 June 2002 1:31 am, Owen Taylor wrote:
> |  > |  I've put up some screenshots at:
> |  > |
> |  > |   http://people.redhat.com/otaylor/fonts/gamma-screenshots/
> |  >
> |  > Owen,
> |  >
> |  > In my opinion, screenshot "With improved hints and gamma correction"
> |  > (which I believe you rfer to) has serious renderin artefacts.
> |  > Width (*boldness*) of diagonal stems (v w x y z V W X Y X Z ) and curved
> |  > glyphs (a b c d g o p q s B C D G O Q S 3 5 6 7 8 9) is inconsistent
> |  > with widths of horizontal and vertical stems.
> |  > I think rendering on screenshot "With improved hints" (no.2) is better
> |  > than on screenshot with gamma correction (no.3)
> |
> |  It depends on the gamma of your monitor. It sounds like your
> |  monitor has a low gamma... on most people's monitors, the gamma
> |  corrected versions should appear *more* consistent in stem width.
> 
> I wish I could arrange gamma for my monitor - but I don't know which tool 
> should I use.
> I have Compaq Presario notebook, with 15" TFT LCD.
> I run XFree86 4.2.0, Qt 3.0.4 and KDE 3.0.2.
> Of course, laptop came with Win98SE, not Linux. But I can't find any Gamma 
> correction utility for Windows as well.

It generally should show up with other video card settings; many video
drivers expose lots of options under Windows.

 
> |  (But they may appear less attractive in other ways ... mainly
> |  being too light.)
> |
> |  If you do a web search you should be able to find some gamma
> |  test patterns; you can then play around with 'xgamma' until
> |  you have a gamma of 2.2 and see if the screenshots look
> |  better.
> 
> Aha.
> [vad@VPlessky X11]$ xgamma
> -> Red  1.000, Green  1.000, Blue  1.000
> And how I should *play* with it?
> Sorry for asking, but this is not obvious.

Something like:

 xgamma -gamma 1.2

will adjust it ('man xgamma' for details), assuming your video driver
supports it. Not all do, even when the hardware has the support.

Regards,
                                        Owen

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