On Wed, Apr 26, 2006 at 02:38:34PM -0400, Woody Suwalski wrote:
I just upgraded my Netwinder from 2.4.27 to 2.6.15 and the framebuffer
no longer works. Console works but when I start X.org I first get a
corrupted screen and a little bit later the whole machine hangs.
There's no panic or any information on the serial console.
<<<
This problem appears only on Cyber2010 chips (Netwinders with Cyber2000
work OK)
The crash issue on 2010 can be solved by disabling burst mode on the
Cyberpro 2010 (graphic register 0x30, EXT_BUS_CTL_PCIBURST_WRITE=0). It
is enabled in the kernel driver by default now.
Exactly the same code exists in the 2.4.21-rmk kernel (just diff'd the
two drivers), so I don't understand why hasn't the problem been reported
against 2.4 kernels.