Bug#251319: marked as done ([xbase-clients] /etc/X11/xinit/xserverrc calls X the wrong way)
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and subject line Bug#251319: [xbase-clients] /etc/X11/xinit/xserverrc calls X the wrong way
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Date: Fri, 28 May 2004 01:50:48 +0200
To: submit@bugs.debian.org
Subject: [xbase-clients] /etc/X11/xinit/xserverrc calls X the wrong way
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From: Daniel <daniel.skorka@stud.uni-karlsruhe.de>
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Package: xbase-clients
Version: 4.3.0.dfsg.1-1
/etc/X11/xinit/xserverrc calls X like that:
'exec /usr/bin/X11/X -dpi 100 -nolisten tcp'
The '-dpi 100' bit is wrong. It overrides anything you might have
written in the config file, which is very annoying. The config file has a
way to specify the screen size. The config file is the correct place to
put this information. The commandline in some script is _not_.
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Date: Sat, 29 May 2004 04:14:01 -0500
From: Branden Robinson <branden@debian.org>
To: 251319-done@bugs.debian.org
Subject: Re: Bug#251319: [xbase-clients] /etc/X11/xinit/xserverrc calls X the wrong way
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On Fri, May 28, 2004 at 01:50:48AM +0200, Daniel wrote:
> Package: xbase-clients
> Version: 4.3.0.dfsg.1-1
>=20
> /etc/X11/xinit/xserverrc calls X like that:
> 'exec /usr/bin/X11/X -dpi 100 -nolisten tcp'
>=20
> The '-dpi 100' bit is wrong. It overrides anything you might have
> written in the config file, which is very annoying. The config file has a
> way to specify the screen size. The config file is the correct place to
> put this information. The commandline in some script is _not_.
The issue is significantly more complex than you imply.
Permit me to refer you to the Debian X FAQ.
http://necrotic.deadbeast.net/xsf/XFree86/trunk/debian/local/FAQ
*) Why are some fonts (or graphical rulers) sized incorrectly?
Programs that try to optimize font sizes for better screen output (such as
FontConfig-based applications) and those that try to show real-world geom=
etry
(like inch/centimeter scales in the GIMP) need to know the pixel density =
of
the display to be accurate. This value is the ratio of the display's pix=
el
resolution to the physical size of your monitor -- generally between 70 a=
nd
120 DPI (dots per inch). If the DPI value used by the X server does not =
match
the actual monitor characteristics, applications that use this informatio=
n are
likely to display fonts and other graphics that are scaled incorrectly ba=
sed
on this inaccurate information. You can use the xdpyinfo program in the
xbase-clients package to check the assumed monitor size and dot resolutio=
n.
The DPI value is retrieved by X client applications by querying the X ser=
ver;
therefore, the X server needs to know (or be told) what value to use.
Two ways to get an accurate DPI value to your application are:
1) pass the -dpi option to the X server (this also works for many non-XFr=
ee86
X servers); or
2) let the XFree86 X server calculate the DPI value based on the DisplayS=
ize
parameter in its configuration file, XF86Config-4. See the
XF86Config-4(5x) manual page for details.
The first method is recommended if you already know the DPI value of your
monitor and wish to always run it at the same resolution; the second meth=
od is
the more flexible way, but only available for the XFree86 X server.
Locate and edit the scripts which start the X server:
/etc/X11/xinit/xserverrc for xinit and startx (in the xbase-clients packa=
ge)
/etc/gdm/gdm.conf for gdm
/etc/kde3/kdm/Xservers for kdm
/etc/X11/wdm/Xservers for wdm
/etc/X11/xdm/Xservers for xdm
Passing the -dpi option to the X server:
In each of these files above, replace the value after -dpi with the cor=
rect
number.
Letting the XFree86 X server calculate the DPI:
In each of the files above, remove the -dpi word and the following numb=
er.
Then edit /etc/X11/XF86Config-4 and locate the "Monitor" section there.
Add a line like:
DisplaySize 288 216
to it. The numbers above are horizonatal and vertical dimensions of the
monitor's visible screen area (in milimeters) which you can often find =
in
the monitor's manual. Manually measuring the visible screen area with a
ruler or tape measure may be the most precise method, but keep in mind =
that
depending on the modeline definitions, the exact measurements of the vi=
sible
portions screen may differ from mode to mode.
When you've finished, restart the X server and use xdpyinfo to check the =
new
DPI settings.
Closing this spurious report. Please edit your conffiles if you dislike the
defaults; that's why they're conffiles.
--=20
G. Branden Robinson | One doesn't have a sense of humor.
Debian GNU/Linux | It has you.
branden@debian.org | -- Larry Gelbart
http://people.debian.org/~branden/ |
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