Curtis Olson wrote:
On Fri, Jul 25, 2008 at 3:20 PM, Keith Clark
<[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> wrote:
Ok, I finally got somewhere!!!!! A major BIOS update, driver
update and now I can run. I start up FGFS with no issues now.
All seems well and fast, for at least the first 3 mins. Then
things go back to being choppy again. I assume this is some kind
of cache setting or something?
Disclaimer: I have no idea ... but let me also suggest heat as a
consideration. Just yesterday I was trying to diagnose a laptop that
ran flightgear in 3840x1024 resolution beautifully for about 5-10
minutes and then the frame rates would slow to about 6-7fps and just
sit there. Sometimes the rates would recover and then drop again,
sometimes you had to restart FlightGear to get good frame rates again.
This laptop had nvidia hardware so I tracked down a little utility
called "nvclock" that shows the temperature of the gpu. This laptop's
graphic gpu was running upwards of 120C ... compared to about 65-70C
for my desktop. We turned the laptop on it's side and blew some cool
air over it with a big window fan and the temps immediately dropped
down into a more sane range and the frame rates came back and things
ran beautifully from that point on as long as we kept the air moving.
So in this case the nvidia hardware was smart enough to sense it was
wildly overheated and it went into a slower, power/heat saving mode to
keep from frying itself.
Probably has nothing to do with your issue, but I thought I'd mention
this since it was fresh on my mind.
Curt.
--
Curtis Olson: http://baron.flightgear.org/~curt/
<http://baron.flightgear.org/%7Ecurt/>
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Curtis,
This could very well be the case! It runs awesome, but only for a few
moments or so. I cannot run Linux on this machine due to the inability
for it to control the heat, so it sounds plausible. I have a great 2
motor window fan. I'll put the laptop on that and give it a shot.
Then, if that works, I'll just get a laptop fan pad and I should be good
to go.
Of the short time that the program did run, the flight characteristics
reminded me of my actual experience in flying a Cessna. Very responsive
and realistic. I look forward to further experience with FlightGear.
Keith
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