Re: [ACPI-sppt] RAMB values

> > As an immediate consequence, you can avoid the hang-on-reboot by
> > hardcoding RAMB to 0x64646464 in the DSDT (haven't tested this).
> > 
> 
> Another possibility is that acpi is buggy, and do not handle correctly
> a read of a dword from an indexed field.

Yes, that appears to be the case. I reported the bug on -devel. By
hardcoding RAMB to 0x0F75064, the thermal zone and fan control work
fine without other modifications.

The only problem left is that the computer hangs during ACPI
initialization, when executing \_SB.PCI0.VGA._INI. A temporary
work-around is to comment out the body of that method.

The cause for this appears to be some kind of conflict with other
parts of the kernel accessing the graphics card -- if I disable the
vga console, the kernel boots fine, though I can currently only log in
via the network. I haven't succeeded in starting X yet, and am
currently experimenting with the framebuffer console.

Cheers
Robert


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