>>On 2015/01/06 23:26, Mark Kettenis wrote: >>> > From: Kasper Steensig Jensen <ksj...@student.aau.dk> >>> > Date: Tue, 6 Jan 2015 21:23:53 +0000 >>> > >>> > >On 2015/01/05 15:17, Kasper Steensig Jensen wrote: >>> > >> acpidump not working because corrupted RSDT. When the command acpidump >>> > >> -o mydump is run it gives the error "apidump: RSDT is corrupted" >>> > >> ACPI has been tested and is working on Debian, FreeBSD >>> > >>> > >Can you get an acpidump from FreeBSD? >>> > >>> > >> so it can't be a problem with the laptop. >>> > >>> > >Yes it can, but these other OS might be ignoring it. >>> > >>> > >> UKC> disable mpbios >>> > >> 53 mpbios0 disabled >>> > >>> > >why? >>> > >>> > >Can you get an acpidump from FreeBSD? >>> > FreeBSD is currently not installed on the laptop but would a Debian >>> > acpidump be good enough? I can install FreeBSD if it's required. >>> >>> Might be. I'm not really familliar with the Linux acpidump tool, but >>> if it dumps all the tables in raw format, it might be useful. >>> >>> The mailing lists will strip attachments, so best if you put it on a >>> webserver somewhere from where we can download it. >> >>It looks like you may be able to do this with linux's acpidump: >> >>acpidump > acpidump.out >> >>- this should produce a text file >> >>acpixtract -a acpidump.out >> >>- this should convert it into a number of .dat files which are what >>might be useful to us (you should also be able to run "iasl -d <file>" >>to disassemble them); tar up the .dat files and put them online >>somewhere. >> >>> Anyway, what we need to figure out is why mapping the RSDT table >>> fails. If you happen to have some hacking skills you could try to >>> figure out which "return NULL" in sys/dev/acpi.c:acpi_maptable() >>> you're hitting on that laptop. > >Here is a link to the acpidump archive file: > >https://cloud.prozum.dk/public.php?service=files&t=78661b263f4932df157c13a94c5209e7 > >On Debian I also got the error "Wrong checksum for XDST", >I can still read the battery on Debian which I can't on OpenBSD. > >I also found the "return NULL" that I am hitting in >sys/dev/acpi.c:acpi_maptable() >It is the 4th NULL which is in the codeblock: > > if (acpi_checksum(hdr, len)) { > acpi_unmap(&handle); > return NULL; > } > >It is definitely the checksum that something is wrong with, >I don't know how to fix it though.
By commenting the code segmenting out which makes it ignore the checksum I could get apm to detect my battery and batterylife. This is bad practice and I would like not to do it this way but it makes it work. Is it possible that my laptop doesn't live up to the ACPI specs or something?
