ubuntu-x-swat team mailing list archive

[pschorre <twodogs@xxxxxxxxxx>]

@Paul David Johnson

Confirm this. 
Former intel graphic drivers supported a maximum framebuffer size from 2048x2048. Since the new kernel based modesetting drivers were introduced the maximum framebuffer size is 4096x4096, witch is enough for my 3200x1600 (2x 1600x1200) screen. So it doesn't wounder that the desktop effects and opengl didn't work with the old drivers, but why doesn't it work today, when the framebuffer is large enough? 
Are there any further hardware limitations? Can't believe this - the Microsoft driver works ...
Compositing itself is not the problem as switching from opengl (hardware redndering) to xrender (software rendering) leads to all the desktop effects working with dualhead setup - but a very, very slow system ...
My suggestion is to search a bug that effects the opengl system and the intel graphic driver. If I can help anyway please let me know!

PS: Bug still exists in kubuntu 10.04-rc and with the linux-
image-2.6.34-020634rc5-generic_2.6.34-020634rc5_i386 kernel.

-- 
lucid beta-2 X crashes with dual head configuration when opengl is enabled with intel GM945
https://bugs.launchpad.net/bugs/559883
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