Re: [wxVTK] wxVTK and wxWidgets 2.8

[Sander N. <nie...@st...>]

I had some offline discussion with Marco on the topic.
This provided some insights that I would like to share with the list:

The problem that Marco was seeing is something that we at our company  
have been able to reproduce with our own wxVTK based application. The  
crash after closing a window seems to happen with Ubuntu 7 (and Debian  
Unstable (sid)), but not with earlier Ubuntu/Debian releases.

The Ubuntu 7 machine of Marco has a "Intel Corporation Mobile 945GM/ 
GMS, 943/940GML Express Integrated Graphics Controller" driver while  
our Ubuntu 7 machine uses a Matrox MGA G550 AGP card, so it is  
therefore most likely not a graphics driver issue.

The interesting thing is that I found that installing the wxVTK  
application on our Ubuntu 7 machine, but running the application  
remote (using ssh + X11) from an Ubuntu 6 client machine did not  
trigger the crash. The other way around (install on Ubuntu 6 and run  
remote from Ubuntu 7 client) also does not result in a crash. However,  
trying to connect via ssh + X11 from the Ubuntu 7 machine to itself  
still shows the crash.

Since Ubuntu 7 is using GTK 2.12, I was wondering whether it could be  
this specific GTK version that is causing troubles. Is there anyone on  
the list that has a non-debian based distribution with this specific  
GTK version (such as Fedora 8) that can test whether the crash appears  
on such a system as well?

Best regards,
Sander

On 2 jan 2008, at 18:00, Marco wrote:

> Mathieu Malaterre ha scritto:
>> You have pages after pages of issues with your Intel OpenGL-DRI  and
>> X11. You need to find someone that is either able to help you:
>>
>> 1. Reinstall your hardware accelerated graphic driver, or whatever
>> needs to be done to fix your xorg.conf
>> 2. find a way to use software accelerated OpenGL (if ubuntu is like
>> debian, this is simply a matter of installing mesa and remove your
>> intel specific package). On ATI this is simply a matter of setting  
>> the
>> proper env variable...
>>
>> I don't like all those issues reported against invalid read in wxGTK
>> either. The code is bad, but there is way too much stuff reported by
>> valgrind, send that to the wx-users list.
>>
>> That's all I can do...
>
> Thank you anyway:)
> Marco
>
> P.S.
>
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