FVWM: FVWM 2.4.5 vs FVWM 2.2.4 window movement.

From: Andrew Haninger <haninger.3_at_osu.edu>
Date: Tue, 26 Feb 2002 23:47:08 -0500

Hello. I've had a problem with FVWM 2.4.x for quite a while with regards
to window movement being slow and choppy. I've even asked here about it
before (<http://www.hpc.uh.edu/fvwm/archive/0110/msg00284.html>) and
received some helpful responses, but no real fix. So, I've just lived
with the choppiness for now.

However, one interesting thing I noticed a couple weeks ago when using a
mouse on my laptop (it's smoother than the little
finger-mouse-pad-thing) is that the choppy window movement I noticed on
my [relatively faster] desktop did not exist on my laptop. For your
information, the relevant info is as follows:

Desktop:
   Hardware:
      Celeron 600 w/320MB RAM
      Radeon VE 32MB DDR _at_ AGP2x
      Samsung 900IFT set at 1600x1200 at 24bit and 75Hz

   Software:
      Base:
         Slackware 7.1
      Add-ons:
         XFree 4.2.0
         Linux 2.4.16(with FB options and DRI options)
         FVWM 2.4.5

Laptop:
   Hardware:
      Base:
         Gateway Solo 2500
         Pentium-2 300 w/64MB RAM
         NeoMagic Video set at 1024x768 at 16bit

   Software:
      Base:
         Slackware 7.0 (XFree 3.3.6)
      Add-ons:
         Linux 2.2.18
         FVWM 2.2.4


What I've found is the important part is the FVWM version on the laptop
(2.2.4) versus the desktop (2.4.5). What I *THINK* happened is that the
window movement code changed from 2.2 to 2.4 (Dominik mentioned
something about the 2.3 code being slow in one of his responses to my
earlier inquiry). I've even compiled 2.2.4 on the desktop and have found
that the 2.2.4 build (with one of the default rc files) was smooth, as
I'd like my 2.4 build to be.

So, my question/problem is that the 2.4 build has choppy window movement
(things that move themselves like xine and xmms and abiword toolbars are
quite speedy as are WM's like BlackBox and WindowMaker), but the 2.2
build does not. However, I like the opaque resizing capabilities of 2.4.
Is there some way that I can rectify this by building 2.4 with special
options, or something? Where in the code would I even look - if I felt
so inclined - for the window movement/resizing code? Is this a
known/acknowledged bug-feature?

And I've tried things like using fewer FVWMPager windows/desktops and
backingstore and saveunder, so that's not the problem.

Thanks!

Andy Haninger
haninger.3_at_osu.edu
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Received on Tue Feb 26 2002 - 22:47:45 GMT

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