[Bf-committers] OpenGL behaviour

Mats Holmberg mats.holmberg at elisanet.fi
Mon Apr 3 13:16:14 CEST 2006


Alexander Ewering wrote:

>
> On Mon, 3 Apr 2006, Mats Holmberg wrote:
>
>> I've had slight graphic trouble with blender, until today I finally 
>> realized how to fix it.
>>
>> I've used only nvidia cards (on multiple computers), and always had 
>> the same troubles. Running blender in fullscreen mode, as prefered, 
>> was screwing up my display a bit. Blender itself has been running 
>> fine, but it's been really irritating when buttons dissappear, screen 
>> goes blank and/or things start blinking. When running with the -w 
>> flag everything was just fine.
>>
>> Today I accidentaly stumbled upon a program called nvidia-settings 
>> (found it in ubuntu repositories) and just had to try all the 
>> switches there to see if it had any effect. And to my surprise, 
>> turning off 'allow flipping' in 'OpenGL settings' made blender run 
>> perfectly also in fullscreen mode. So, is this something that can be 
>> called a bug? And if so, is it nvidia or blender related?
>
>
> That's a very old and known thing... and nvidia-settings is - to my
> knowledge - even included with the NVidia driver :)
>
> There's also a corresponding XF86Config option, called Option "NoFlip",
> which indeed has to be turned "On" for Blender to run smoothly.
>
> It isn't in any FAQ?


Not that I know of. Maybe the problem is where to actually find the FAQ 
it would be mentioned in, as googling will reveal an overwhelming amount 
of graphics hardware problems related to blender. I now found an old 
post from 2004 by yourself, regarding the issue. But I needed to know 
the problem before I could be specific enough for google, so it was help 
too late.

On ubuntu you install nvidia-settings separately. But the solution 
reached even me now, so I'm satisfied with that =)

Thanks,
Mats


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