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= ROOT|Technical|LinuxGazette|issue109.txt =

page 6 of 112



   Curiously,  I  was still able to do the "Print Test Page" from the web
   interface, although others said they couldn't.

   In an ideal world, dependencies would prevent this kind of problem from
   happening.   But   it's   impossible  for  maintainers  to  know  what
   incompatibilities might appear in third-party libraries in the future.

   Here are the forum posts:
   [76]http://forums.gentoo.org/viewtopic.php?t=144236&highlight=cups+glibc
   [77]http://forums.gentoo.org/viewtopic.php?p=1274761#1274761
            ____________________________________________________

KDE logout action

   Mike Orr ([78]LG Contributing Editor)

   I found the [79]KDE option to change it back to showing the login screen
   after logging out instead of shutting down ([80]../106/orr.html). It's KDE
   Control Center -> Session Manager -> Login as different user.
            ____________________________________________________

Mouse acceleration with Linux/X

   Dave Blackburn ([81]blackburn from acm.org)
   Answered By Ben Okopnik, Thomas Adam, Jason Creighton

   How can I adjust the "base" ratio between mouse motion and cursor motion on
   the screen? 

   I have successfully used xset. It works well for me. My problem is that the
   "base" ratio (e.g. with xset m 1 10) is too high (fast). 

     [Ben] I'm not sure what you mean by a "base ratio", Dave; I've found that
     I  prefer a different "xset m" setting for different computer/mouse
     combinations, but have never come up with an absolute "rate" to reflect
     that preference. Whenever I set up a new machine, I twiddle this for a
     minute or two, set it in my ~/.xinitrc, and forget about it from there on.

   I  mean  the mouse speed (i.e. ratio between mouse movement and cursor
   movement) without using: xset -- the initial mouse speed provided by X as
   if e.g. xset 1 10 were active. 

     [Ben] Ah - I was misled by the word "ratio", which implied to me that you
     were  using  "xset" with some fraction as a parameter (the man page
     specifies that you can do this.) Now I get what you mean.

     I  usually  use  "xset  m" with a single parameter (which specifies
     "acceleration" only); I find that this works well for pretty much every
     machine out there. Once you start using more than that, you're off into
     /Terra Incognita/: some meeces will respond in odd ways to "threshold"
     tweaks.

   I am using both RH 9.0 and Fedora 2 on a laptop. With RH 9.0, the "base"
   ratio is fairly slow. With Fedora 2 the ratio is quite a bit faster. 

     [Ben] I presume the two of them use somewhat different mouse drivers.

   Using RH 9.0, I apply xset m 3 20 getting a pleasant result. Using Fedora 2,
   the "base" ratio is too fast for me. 

   Doing an Internet search, I found many explanations for xset. 

     [Ben] The man page for it is quite informative as well.

   Also, I found the suggestion that I could modify xorg.conf (in /etc/X11) by
   adding a line like: 

     Option "Resolution" "500"

   in section: 

     Section "InputDevice" Identifier "Mouse0"

   This  seemed  like  the answer I was looking for. However, when trying
   different values for Resolution, I observed no change in the "base" rate. 

     [Ben] I'm not familiar with "xorg.conf", but I've learned from personal
     experience that, while the "Resolution" option used to work in XF86Config,
     it does not in XF86Config-4.

   This info is helpful. This is what I experienced. 

   Do one of you know how I can slow down the mouse when running Fedora 2? 

     [Ben]  Find  the value of "xset m" that you like and add it to your
     "~/.xinitrc" or "~/.xsession".

   I use xset in ~/.xinitrc. 

   It seems that xset can only be used to speed up the mouse. 

     [Thomas] Err, no. xset is used to control the mouse threshold speed which
     means you can either increase or decrease it. One other option you have is
     that you might be using an incorrect mouse protocol for your configured
     mouse.

   I want to slow the mouse down. In connection with slowing the mouse, I will
   use xset to control the higher speed. 

   Since the "Resolution" option doesn't work in XF86Config-4, perhaps it's
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0.0119009 wallclock secs ( 0.01 usr + 0.01 sys = 0.02 CPU)