Chris R. Martin wrote:
>
> How can I convince xdm that I want to run at a 32-bit color depth by
> default rather than 8 bpp? Do I need to 'hack up' my XF86Config file so
> that 32 bpp is the only one availible, or can I somehow pass a parameter to
> the X server when it is started up?
The short answer: Look in /etc/X11/xdm/Xserver
The long answer:
$ man xdm
NAME
xdm - X Display Manager with support for XDMCP, host
chooser
[...]
OVERVIEW
xdm is highly configurable, and most of its behavior can
be controlled by resource files and shell scripts. The
names of these files themselves are resources read from
the file xdm-config or the file named by the -config
option.
[...]
RESOURCES
At many stages the actions of xdm can be controlled
through the use of its configuration file, which is in the
X resource format. Some resources modify the behavior of
[...]
DisplayManager.servers
This resource either specifies a file name full of
server entries, one per line (if the value starts
with a slash), or a single server entry. See the
section Local Server Specification for the details.
[...]
CONFIGURATION FILE
First, the xdm configuration file should be set up. Make
a directory (usually <XRoot>/lib/X11/xdm, where <XRoot>
refers to the root of the X11 install tree) to contain all
of the relevant files. In the examples that follow, we
use /usr/X11R6 as the value of <XRoot>.
[...]
Note that this file mostly contains references to other
files. Note also that some of the resources are specified
[...]
Debian puts the X11 configuration files in /etc/X11/ so if you look in
/etc/X11/xdm/xdm-config
$ cat /etc/X11/xdm/xdm-config
! /etc/X11/xdm/xdm-config
!
! resources specific to xdm itself
DisplayManager.authDir: /var/lib/xdm
DisplayManager.errorLogFile: /var/log/xdm-errors
DisplayManager.pidFile: /var/run/xdm-pid
DisplayManager.keyFile: /etc/X11/xdm/xdm-keys
DisplayManager.servers: /etc/X11/xdm/Xservers
DisplayManager.accessFile: /etc/X11/xdm/Xaccess
[...]
The DisplayManager.servers line xdm to look in /etc/X11/xdm/Xservers to
start the X server.
$ cat /etc/X11/xdm/Xservers
# /etc/X11/xdm/Xservers
# [Comments deleted]
:0 local /usr/X11R6/bin/X
So all you have to do is append the option `-bpp 16'. Voila!
Noel
