Comment 80 for bug 333386

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Stefan Bader (smb) wrote : Re: [Bug 333386] Re: Cannot change brightness with 2.6.27-11+ kernel

I believe the BIOS is buggy with that respect (not sure why the DSDT compiler
freaks out but that might be a different issue). I manually looked up those
values in the DSDT you provided, so based on that data the kernel takes the
right steps. The question is whether the new BIOS fixes this or whether this
needs a general exemption for being a special (known broken) machine.
It seemed to have worked in the past. There certainly can be a solution to
Jaunty (though it needs a kernel change), but that cannot be the sole solution
as it will likely break with every newer kernel. I cannot exactly say how to
proceed from here. But I try to ask around. Meanwhile to complete the data
gathered here, could you add the output of "sudo lspci -vvvnn" to the bug
report please?