ATI/RIVA framebuffer, 2.4.20-pre8 freeze

[Ivan Gyurdiev]

I have two graphics cards listed below (2.4.20-pre5 /proc/pci).
With both framebuffers enabled...

CONFIG_FB_RIVA
CONFIG_FB_ATY
CONFIG_FB_ATY_CT

...the kernel freezes after printing the ATY messages.

With FB_RIVA enabled, and ATY disabled, the framebuffer works.

I've experienced the same problem on earlier 2.4 kernels.
=======================================

  Bus  0, device  10, function  0:
    VGA compatible controller: ATI Technologies Inc 3D Rage Pro 215GP (rev 
92).
      IRQ 9.
      Master Capable.  Latency=32.  Min Gnt=8.
      Prefetchable 32 bit memory at 0xde000000 [0xdeffffff].
      I/O at 0xdc00 [0xdcff].
      Non-prefetchable 32 bit memory at 0xe0000000 [0xe0000fff].

  Bus  1, device   0, function  0:
    VGA compatible controller: nVidia Corporation NV20 [GeForce3 Ti200] (rev 
163                                                               ).
      IRQ 5.
      Master Capable.  Latency=248.  Min Gnt=5.Max Lat=1.
      Non-prefetchable 32 bit memory at 0xdc000000 [0xdcffffff].
      Prefetchable 32 bit memory at 0xd4000000 [0xd7ffffff].
      Prefetchable 32 bit memory at 0xd8000000 [0xd807ffff].