On 02/24/13 17:04, Eitan Adler wrote: > On 24 February 2013 19:57, matt <sendtom...@gmail.com> wrote: >> On 01/29/13 10:24, Ian Smith wrote: >>> On Tue, 29 Jan 2013 12:46:43 -0500, Eitan Adler wrote: >>> > On 29 January 2013 12:29, Ian Smith <smi...@nimnet.asn.au> wrote: >>> > > Ah right. I don't suppose kldload -v shows anything useful about the >>> > > problem loading it? Ah, never mind, it may be obvious .. lightly >>> > > skimming your asl.y530.gz, I recalled folks having to patch something >>> > > for Lenovo rather than IBM OEMIDs .. hunt, hunt .. ok, here it is: >>> > > >>> > > http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/164538 >>> > >>> > >>> > This is after the install of a patched acpi_ibm >>> > [3500 root@gravity /usr/src/sys/modules/acpi ]#kldload -v acpi_ibm >>> > Loaded acpi_ibm, id=12 >>> >>> Which looks maybe successful, on the face of it? .. >>> >>> > [5507 eitan@gravity (100)% ~ !1!]%sysctl dev.acpi_ibm >>> > sysctl: unknown oid 'dev.acpi_ibm' >>> >>> .. but clearly wasn't. >>> >> The Y series doesn't have the HKEY stuff, or it's not the same. You want >> acpi_video (as does every new Lenovo, thinkpad or not). >> >> The problem is Lenovo is putting the "correct" _BCL/_BCM under "PEG" >> devices....section from your dsdt follows, temporary workaround test >> after that > ... > >> This would be under _SB.PCI0.PEG0.VGA >> >> Try acpi_call -p '\_SB.PCI0.PEG0.VGA.LCD._BCL' >> then >> acpi_call -p '\_SB.PCI0.PEG0.VGA.LCD._BCL' -i 50 >> >> Experiment with the numbers. >> >> We need to fix acpi_video so it attaches to the correct _BCL on these >> laptops. > Unknown object type '4' > > regardless of what number is passed to -i. Same with the first call. >
I made a typo :( Change the second call from _BCL to _BCM. The first call _BCL would "trapdoor" a thinkpad, and it returns an unknown object type 4. Acpi call has some formatting options to display this "object", it's usually (or should be) a list of valid backlight levels. The second call should set the value. _BQC will return the current value. If that does not work, also try replacing PEG0 with PEG1. Matt _______________________________________________ freebsd-acpi@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-acpi To unsubscribe, send any mail to "freebsd-acpi-unsubscr...@freebsd.org"
