Open-GL difficulties in linux

i have had this problem for 3-4 months. OpenGL codes do not run that good as they should in windows. I have a project that i need to run it in linux, with times, pipes, ... that use the Windows API. I need to migrate the code but it doesn't look good. For example they are flash开发者_如何学Going on the screen! is it from my graphics card on linux? or is it some other difficulties? Also i have ATI HD3470 on VAIO-FW13GU/H laptop running Debian5. Are there any good(i have seen some drivers but not so good :-S) drivers for ati hd series?

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Try creating some simple demo program that uses the OpenGL features you're using in your code. Try isolating which features causes the problem. If all of them worked as you expected, there is a chance that the bug is in your code you may be assuming some platform specific behavior that get borked in linux.

I have had a bug when porting a Windows C++ code, where the 3D mesh parsing code doesn't correctly handle windows-style line ending and that caused the mesh to produce ugly colors since it passes a number string to a home-brewn string-to-int function (which I promptly replaced with atoi()), which gets silently borked when it meets the extra line end character.