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authorFrancis Rowe <info@gluglug.org.uk>2014-10-17 09:43:15 (EDT)
committer Francis Rowe <info@gluglug.org.uk>2014-10-17 09:43:15 (EDT)
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Documentation: macbook21: clean up
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factory.bin: 2 hours left on idle (99% battery), 48mins left on stress (82% battery)
</p>
<p>
- mtjm: see what Macbook's vendor boot firmware has in its ACPI tables?<br/>
- fchmmr: if this works, I'll add the patch to libreboot proper, and udpate the build scripts to use it (also, I should submit the change upstream)<br/>
- fchmmr: mtjm, how do I do that?<br/>
- mtjm: (I don't know if these values are generic or specific to something)<br/>
- mtjm: fchmmr: get them, decompile, read, use the spec to understand what _CST does; acpidump and iasl help<br/>
- so, acpidump and then iasl -d ?<br/>
- http://smackerelofopinion.blogspot.co.uk/2009/10/dumping-acpi-tables-using-acpidump-and.html
- cstate entries should be is SSDT.dat. so use iasl -d on it
- </p>
- <p>
- The following patch was made (copied from x60 mainboard.c): <a href="future/donotusethis_macbook_acpi.diff">do not use this</a><br/>
- (resulted in bricked macbook21: grub booted, but kernel would get stuck while booting (flashing text). wasn't sure how to debug)
+ Todo: see what the non-free firmware has in it's ACPI tables using acpidump and iasl -d. Try to implement cstate support in coreboot
+ (this will allow for lower temperatures).
</p>
<p>