Hello Randy, Thank you for your reply, and no luck so far solving anything. I have ACPI working to display the battery charge state, but it does not appear to do anything useful for conserving the power. What I need is control over the hardware to dim the screen and scale processor even lower than 1.6ghz according to the battery's charge state. I'm under the impression that APM allows this to be done in a configurable manner. APM is compiled permanently into the kernel (not a module), so the lsmod and modprobe commands generate unknown module errors. ACPI is also compiled in permanently, though its usefulness is limited since it doesn't do much besides check on the battery's charge state (or does it..) Randy Glenn wrote: > Does APM show up when you run lsmod? If not, you might try running > "modprobe apm". > > Also, if you want to do power management and such, ACPI often has > better features (though is somewhat harder to get working). The best > way I've found to get ACPI working on a notebook, is to search for > someone who's set it up with your model of notebook before, and copy > what they did. > > As for assembler, gpasm is basically where it's at. > > On Tue, 04 Jan 2005 20:39:05 -0500, Robert B. wrote: > >>Hey guys, >> >>Completely off topic for pics, but driving me nuts none the less. >> >>I've been off the list for a week or so as I converted to an all linux >>environment. After 5 days of figuring out linux wifi, I'm finally back >>online. The only residual problem is getting APM to work on my laptop. >> The kernel is compiled with APM, but when I try to launch the APM >>interface the error says "No APM support in Kernel". I can't seem to >>dig up much info on this problem at all, and recompilations of the >>kernel with various APM options seems to do nothing at all. >> >>Does anybody have a clue to point me in the right direction? I'm >>totally stumped right now. To get by I just underclocked the 2.3ghz >>chip to 1.6ghz to save power (the only difference I've noticed is a >>*very* large reduction in teh amount of heat pouring out the back of my >>laptop, and a moderate extension of usable battery time) >> >>Details: >>Laptop is a toshiba satellite S159, p4 2.3ghz underclocked in software >>to 1.6ghz >>Kernel is 2.6.8, compiled with source from the mandrake 10.1 cds, and a >>wifi patch for the atheros wifi driver. >>Alternate kernel attempts are the kernel.org 2.6.8 and 2.6.10, with the >>same errors. >>All the APM options are selected for building the kernel, as well as >>"toshiba laptop" support. >> >>I know that (at least in Windows) the laptop hardware supports screen >>dimming and dynamic processor frequency scaling, but I can not seem to >>get it working in mandrake. >> >>Sorry this is so far off topic, but I really am stumped! Any help is >>appreciated, even dim memories of installations past that might point me >>in the right direction. >> >>Thanks a ton, >> >>Robert B. >> >>p.s. To get it at least remotely involved with PICs, are there any >>favorite development environments on *nix for pics? I've been drooling >>all over the MSP-gcc toolchain and it's working great (gotta love the >>command line), but have yet to find a solid PIC programming interface or >>assembler. I have various programmers including a parallel port pgc3 >>and a jdm, both seem to be well supported. >>-- >>http://www.piclist.com PIC/SX FAQ & list archive >>View/change your membership options at >>http://mailman.mit.edu/mailman/listinfo/piclist >> > > > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist