Bug#488283: software rendering

[Brice Goglin <Brice.Goglin@ens-lyon.org>]

Sten Heinze wrote:
> Am Tuesday 28 October 2008 06:54:05 schrieben Sie:
>   
>> Handle yes, allocate no. Allocating room for a 2048x2048 virtual screen
>> requires a lot of available memory.
>>     
> I cannot imagine that it needs more memory that I have. According to [1] on 
> system with more than 256MB of ram (i have more) 64MB should be allocated to 
> the graphics card. For 3d acceleration I need 4*height*width*colordepth, again 
> according to [1], which is 4*2048*2048*4byte=64MB. Do I miss something?
>   

All I know is that AGPGart seems to be failing to provide enough memory.

>> And if DRI doesn't work, I don't think you can expect 3d effects in KDE
>> to work. That probably explains the white screen.
>>     
> I don't expect KDE to work with 3d effects, but I expect it to fallback to 
> normal operation without 3d effects. And it does this correctly if I e.g. 
> switch to driver from intel to vesa. Therefore I would also expect it in this 
> case.
>   

Vesa doesn't have any DRI at all, it's different from your setup where
DRI/AIGLX should be supported. Maybe KDE is only good about detecting
completely dumb drivers :)

Brice