Framebuffer problems, 2.4.20-rc2, 2.5.51

[Ivan Gyurdiev]

Hardware:
00:0a.0 VGA compatible controller: ATI Technologies Inc 3D Rage Pro 215GP (rev 
5c)

01:00.0 VGA compatible controller: nVidia Corporation NV20 [GeForce3 Ti200] 
(rev a3)

Using ATYFB with CONFIG_FB_ATY, CONFIG_FB_ATY_CT and RIVAFB

2.4.20-rc2:
	Kernel freezes upon loading the ATYFB driver.
	No error messages.Sysrq has no effect. 
	Riva framebuffer alone works.
	

2.5.51:
	Kernel freezes upon loading the ATYFB driver.
	No error messages. Sysrq has no effect.
	
	Riva (tested without atyfb) shows a black screen, apparently
	followed by a kernel freeze since Sysrq has no effect.
	
	Kernel without boots without framebuffer, so the framebuffer causes the 
freeze.

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