Started by jwischka, December 17, 2012, 06:36:15 AM
Quote from: ontsurt on March 06, 2013, 12:10:45 AMThe way I look at it: at 50 watt continuously the board uses about 95 Euro's worth of energy per year. That just feels so wasteful for a radio/squeezebox that I only listen too 2 or 3 hours per day when having breakfast or dinner.Then again I don't know it there are any drawbacks from using cpu freq and allowing the board to go into near complete idle mode. If that makes it completely unsuitable for other purposes for instance then obviously it makes sense not to implement it.I've tried to do some reading on it but this and came across some references to using cpufreq in combination with sched_mc_power_savings which apparently gives the best results or something but honestly this is beyond my current understanding of Linux. If you do it you make me a happy man is about all I can 'meaningfully' say.Kind regards,Leon
Quote from: ontsurt on March 08, 2013, 05:23:56 PMThanks for the pointer. I have to admit that I found it odd myself but it was technically possible as the PSU I am using delivers 12 volt at a maximum of 4 Amps. So I was just assuming it was maxing out the PSU. The PSU is regulated so it shouldn't consume this much power if it's not used.However if you suspect it's only drawing about 5 watts of power it could well be that the sensor I am using is simply not sensitive enough and somehow bottoming out at 50 Watt. I'll borrow a more accurate sensor and see what that reads.Cheers
Quote from: alp on March 11, 2013, 10:50:27 AMHi!These Ubuntu images seem very nice. I would like to use them but I want to beable to compile the kernel myself. To get the exactly same kernel it is however notenough to use the kernel sources that can be downloaded according to thegeneral instructions about building the kernel. The vital part is the .config file.Would it be possible to obtain the .config file for the kernels in theseimages. I would like to have it at least for R17 and R18.Thank you in advance!
Quote from: alp on March 11, 2013, 07:44:49 PMThank you, now I have found the config files. But then I had problems usingthem. I followed the instructions in https://www.olimex.com/wiki/Build_Bootable_SD_Card_with_Debianunder "Building the Kernel". But apparently this caused the download of the version3.0.62 of kernel. According to the jwischka changelog I see I should haveversion 3.4.29. I am confused now... Where exactly should I look to get this version of thekernel source tree which includes all of the necessary support for theOlimex A13-WIFI board? Can I simply use the general version 3.4.29 on www.kernel.org?Do I need to apply some patches to it for the Olimex A13-WIFI board support?Once again... thanks for the help!
olinuxino@ubuntu:~/drive/Songs$ grep audio /etc/groupaudio:x:29:linaro,olinuxino
Errors were encountered while processing: cpufreqdE: Sub-process /usr/bin/dpkg returned an error code (1)
Quote from: jwischka on March 17, 2013, 01:55:27 PMcpufreqd support is just broken. I shouldn't have included it. I'd recommend uninstalling for the moment. I may try to get it working in the future, but honestly it's pretty low on the priority list.