Re: [Visualpython-users] Bug in Visual 5.1 on Vista when more than one window is opened

[Symion <kn...@ip...>]

gelfand wrote:
> The graphics driver (for Intel video) is the most recent release from Dell.
>
> Both waves.py and controlstest.py show the "bad" behavior as well. For
> example,
> in waves, only the middle window actually displays a wave, the upper and
> lower
> ones (corresponding to 2.0 and 0.5 kg mass) are empty.
>
> Any suggestions for further debugging, or is this definitely a video driver
> issue?
>
> Marty
>
> On Wed, 20 May 2009 14:27:45 -0600, Bruce Sherwood
> <Bru...@nc...>
> wrote:
>   
>> I don't recall ever seeing this. In both gas.py and graphtest.py a graph 
>> is involved, so it might be useful to try a multiple-window program such 
>> as waves.py or controls.py to verify that the problem has to do with 
>> multiple windows rather than graphs.
>>
>> Despite it being a new laptop, it's worth seeing whether there's an 
>> update available for the graphics driver. What graphics hardware do you 
>> have?
>>
>> Unfortunately, in the case of a laptop, the laptop manufacturer has to 
>> pull some difficult tricks to shoehorn everything in, so typically you 
>> have to get graphics driver updates from the laptop manufacturer rather 
>> than from the manufacturer of the graphics card, and there's a chance 
>> that the laptop manufacturer doesn't have the driver quite right.
>>
>> Bruce Sherwood
>>
>> Martin Gelfand wrote:
>>     
>>> I installed Visual 5.1 and Python 2.6 on a new laptop running (32-bit?)
>>> Vista and
>>> found that demo programs that opened more than one window behaved oddly.
>>> For example, gas.py did not display any spheres in the "gas box" but the
>>> velocity histogram was updating as expected. Remove the code which
>>> displays the histogram, then the colliding spheres appear as expected.
>>> Similar odd behavior occured with graphtest.py .
>>>
>>> Anyone else see this?
>>>
>>> Thanks,
>>> Marty
>>>
>>>
>>>
>>>       
>
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>   

Hi there,
    I don't think the previous message got through, so here it is.
    I have a ASUS Laptop with a graphics card that only supports Pixel 
Shader 2.0, and I have to report the same problem when opening two or 
more windows. When I ran Wave.py and graphtest.py both stopped working 
after a short time, while the processor was running hot.

The following routine runs Ok if you set 'double=0', but if you set 
'double=1' then the processor runs at a high rate and after a while the 
program falls over.
Source Code : EarthSunMoon.py 
<http://home.iprimus.com.au/knoware/python/EarthSunMoon.py>

Symion