This bug still exists (behaviour is unchanged) in kernel 3.6.3: Linux svoboda 3.6.3-1-ARCH #1 SMP PREEMPT Mon Oct 22 10:23:56 CEST 2012 x86_64 GNU/Linux On Mon, Jul 9, 2012 at 4:23 PM, Eric Swanson <e.swanson@xxxxxxxxxxxxx> wrote: > I just got a W530 a few weeks ago. I've noticed that thinkpad-acpi can > turn the thinklight off but not on. If I turn it on with Fn-Space, > then do something like: > > sudo tee /proc/acpi/ibm/light <<< off > sudo tee /proc/acpi/ibm/cmos <<< 13 > > The light turns off. But issuing the opposite commands (below) has no effect. > > sudo tee /proc/acpi/ibm/light <<< on > sudo tee /proc/acpi/ibm/cmos <<< 12 > > The reported status from the /proc/acpi/ibm/light file matches the > actual status of the thinklight. > > I copied /dev/nvram to a file and diffed it with the light on and off > with no difference, so there's no nvram control of the thinklight > (might be obvious; this is my first thinkpad). > > I tried all the CMOS commands from 0 to 21 with no effect, but I > wasn't expecting much - why would they change the CMOS command number? > It also seems strange that the off command is still present but the on > command is not. > > If it's relevant, I'm using Arch Linux: Linux svoboda 3.4.4-2-ARCH #1 > SMP PREEMPT Sun Jun 24 18:59:47 CEST 2012 x86_64 GNU/Linux > > I've attached the dumped DSDT. If there's anything else I can send to > be of help, let me know. > > Regards, > -- > Eric Swanson > http://www.alloscomp.com/ -- Eric Swanson http://www.alloscomp.com/ ------------------------------------------------------------------------------ LogMeIn Central: Instant, anywhere, Remote PC access and management. Stay in control, update software, and manage PCs from one command center Diagnose problems and improve visibility into emerging IT issues Automate, monitor and manage. Do more in less time with Central http://p.sf.net/sfu/logmein12331_d2d _______________________________________________ ibm-acpi-devel mailing list ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel
