[Bug 246222] Re: Linux 2.6.26 not loading custom DSDT from initrd

[Howard Chu]

re: Filing bugs against the kernel - that's only reasonable when there
is in fact a kernel bug. There are plenty of ACPI bugs that cannot be
labeled as kernel bugs, or fixed by other kernel patches. E.g. the new
AMD-based Lenovo Thinkpads are *missing* the PSS tables, because Lenovo
simply released these machines too early, with an incomplete BIOS. So
CPU frequency scaling is unavailable without patching these tables into
the DSDT. No amount of kernel fixing can make up for totally missing
ACPI info, the only solution is to fix the DSDT.

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Linux 2.6.26 not loading custom DSDT from initrd
https://bugs.launchpad.net/bugs/246222
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