--- On Thu, 1/13/11, Felix Miata mrma...@earthlink.net wrote:
From: Felix Miata mrma...@earthlink.net
Subject: Re: [Intel-gfx] PCI configuration space of the VGA controller and
laptop LCD picture quality.
To: intel-gfx@lists.freedesktop.org
Date: Thursday, January 13, 2011, 11:29 PM
On 2011/01/13 11:58 (GMT-0800) SD
composed:
I still can't figure out why Fedora (13,14,15) shows
LCD picture much
worse then opensuse 11.1.
What does worse mean? Most people who see worse are
actually complaining
about fonts, and in most cases even then they don't define
what is worse
about the fonts. Can you upload screenshots of both so
people can see what
worse means?
That said, Fedora sets some system wide variables that
affect X
quality/behavior in /etc/X11/Xresources:
Xft.dpi
Xft.hintstyle
Xft.hinting
openSUSE doesn't do that. If you comment those away in
Fedora, or match the
Xft.dpi number to your LCD's actual DPI, you may find the
difference is
reduced or disappears, particularly if actual DPI varies
more than nominally
from the Xft.dpi setting. OTOH, they may produce little or
no improvement if
you've set your DTE to force DPI or tweaked its font
smoothing settings.
If you need to comment further, also specify which DTE you
use, as that can
matter as well in future responses.
As long as I still want to use Fedora on my laptop I
would like to ask -
can picture quality be spoiled by different PCI
configuration?
I highly doubt it, other than if it's wrong there's no
picture to assess the
quality of.
-- How much better to get wisdom than gold, to choose
understanding rather than silver. Proverbs 16:16 NKJV
Team OS/2 ** Reg. Linux User #211409
Felix Miata *** http://fm.no-ip.com/
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Thanks for the answer and questions.
Picture quality I meant is what I think after some bad experience with Fedora
13, 14 and now rawhide 15 it is backlight, it is not solid or smooth like on
opensuse 11.1. On all fedora it looks like backlight flickers, and it doesn't
make picture solid (smooth).
I check everything and compare everything I can. It is not font, or DPI because
both OS on the same laptop and I made exactly the same settings.
But after less then an hour on Fedora my eyes start aching. I start to suspect
backlight frequency or something else, because first that one can notice is
higher screen brightness and therefor colors are brighter also. I did the same
xgamma settings, backlight level is also the same.
Only thing is different, which I can see myself (and find myself) is PCI
configuration.
Latter I will send here picture of screen with different colors from opensuse
and fedora, also video PCI memory dump
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