--- Jon Elson <[EMAIL PROTECTED]> wrote:
> Mike Rawlins wrote:
>
> >I'm running v0.9.8 compiled from CVS checkout. OS
> is
> >Fedora Core 2. At almost exactly 20 second
> intervals,
> >I hear what sounds like an engine "sputter", or
> better
> >yet, a crackle. I used to think it was a problem
> with
> >hard drive or memory access, until I realized last
> >night that it occures every 20 seconds (+/- less
> than
> >1 second). Also, the Cessna 172 pitches up when I
> have
> >back pressure on the joystick, or downward if there
> is
> >forward pressure. Plane is virtually impossible to
> >control when on final at 1500-1700 RPM and 65
> knots.
> >Stall horn beeps as well.
> >
> >I get the crackle sound on other aircraft (737,
> Piper
> >Cherokee Warrior II), without the pitching
> up/down).
> >
> >A particularly annoying problem since the C172 is
> >affected most.
> >
> >Any ideas? I thought maybe the C172 needs fuel
> mixture
> >adjustments??? The regularity of this is uncanny!
> >
> >
> I *think* this is the Astro component of FlightGear
> updating the
> positions of objects in the sky. The time
> discontinuity is probably
> responsible for the pitch changes. (Although it
> shouldn't have
> that effect.) What speed CPU do you have?
>
> Jon
CPU is Pentium 4, 1.6 GHz on my Dell Inspiron 8200.
Laptop is about 2 years old. 2 GB RAM.
One of our tech guys at work said CPU speed is likely
irrelevent to the graphics performance, and instead
suggests that my 32MB NVIDIA GeForce2 video card
(default setup out of the box) can't keep up. But why
the regular 20-second intervals to this particular
anomaly? Can anyone else weigh in on this particular
video card? Are there options to set to test whether
or not I'm pushing to hard on the graphics (disable
random objects, etc)?
Mike
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