I bought a new video card, the ATI 1950pro(256megs). And of course installed new drivers ATI 7.1. I cannot start Blender 2.42 or 2.43 at all. It gives me a blue screen of death, with message ' ATI2DVAG' infinity loop.
I was able to use Blender 2.41 and earlier versions to 2.30 with no apparent problem. Is this an OGL problem. or an ATI problem. With my older videocard ATI X700 I could run 2.42 before.
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Problems like this are almost always related to your graphics card and drivers and not really Blender issues. Apparently you are not alone. Googling for ATI2DVAG turns up a lot of entries.
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try turning down your hardware acceleration in your ati opengl settings that might allow blender to run. But you should also file a bug report with ATI.
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Yes, an OpenGL problem. I am very interested to hear exect details though. Such problems we don't want with newly purchased cards.
-> are you sure 2.41 and earlier versions work with this card?
-> check all options as ATI provides you with. There must be a menu to tweak opengl settings and performance. Disable everything that smells like game optimizing or speed hacks.
-> also check blender.org support faq for hints
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I solved it myself. I posted this on the Help forum.
ATI x700 pro
win xp sp2
1 gig ram
AMD 3000
it ran with I believe the CAT 5.4 atioglxx.dll driver
I installed any CAT driver to a temp, then found the ogl driver;
atioglxx.dl_
found expand.exe(16kb) and copied this
Then went to DOS mode;
c> expand atioglxx.dl_ c: atioglxx.dll
Then copied this to \system32 and \dllcache folders.
I just bought the new ATI 1950pro videocard and couldn't get Blender to work with the latest driver CAT 7.1. So I tried a previous driver and found that the
(CAT 6.11 atioglxx.dll) worked with the CAT 7.1 driver.
And now Blender 2.43 works!!!!
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This is very confusing info, can you type it in a way we can copy it for our faq?
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I think the short version is: do not use latest ATI driver.
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FAQ: Problem getting Blender 2.42, 2.43 to run on an ATI videocard.
(Atleast the two videocards I had, ATI X700pro and ATI 1950pro and WIN XP.)
1.) Run (CAT 5.4 for my ATI X700pro)(CAT 6.11 for my ATI 1950pro)driver software.
It'll show a directory, but change it to some temporary
directory name. Then it'll ask you whether to install. Click 'CANCEL'.
3.)Locate the file called atioglxx.dl_.
(for CAT 5.4 its in the ATI\support\driver\2KXP_inf\B_22056\atioglxx.dl_
version 6.14.10.5014
(for CAT 6.11 ATI\support\driver\2KXP_inf\B_40582\atioglxx.dl_
version 6.14.10.6174
2.)Do a file search for a small MS program called 'expand.exe'. (mine was in Documents and 16kb in size)
3.)Copy this expand.exe to the temporary directory you extracted the ATI CAT driver file atioglxx.dl_.
4.)Run the 'command prompt' to go down to DOS level. Change directory CD to where the expand.exe and
you atioglxx.dl_ file is.
Example;
c:> expand atioglxx.dl_ c: atioglxx.dll
5.) Copy the atioglxx.dll to your Windows\system32 and Windows\system32\dllcache directories.
*Note CAT 7.1 didn't work with ATI 1950 pro so I went back until I found one that did.
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Are you formatting text some way we don't see here?
Anyhoo, maybe for a Windows user this makes sense.. will ask them to check it and put on our faq. Thanks!
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This is a generic request to test your bug report and see if it is still an issue in 2.5alpha2 if so please let me know by making a comment in this report ie 'also in 2.5alpha2' and I will add it to the 2.5 bug list.