Jean Delvare wrote: >>I have an Asus A7N8X-X mainboard with the asb100 (bach) and the >>w83l785ts chip. Latter one reads the internal CPU-temp-diode. When >>all needed modules are loaded it works really well including >>fancontrol. >> >>But the w83l785ts doesn't always work. When the module is inserted >>trough the lm_sensors start-script it is listed when doing lsmod but >>there is no /sys/bus/i2c/devices/1-002e/ directory. After I rmmod and >>modprobe the module (sometimes several times) everything works. When >>using Windows I realized that Speed Fan also sometimes failes to >>detect the w83l785ts-chip. Is this a known problem and do you know a >>workaround? There are no error-messages from modprobe, dmesg or >>anybody else. >> >> > >This much reminds me this bug report: >http://bugzilla.kernel.org/show_bug.cgi?id=2899 > >Please read the whole thread and confirm, or detail why your case is >different. > > This matches my problem, except that I had one case where I rmmoded and then modprobed the w83l785ts module again it still didn't work and it took a second try. >Next step would be to apply the proposed patch and recompile your >kernel, including "I2C chip debugging messages", then compare a working >case with a failing one, and report. I suspect that reads are sometimes >wrong with no error reported, due to the BIOS messing up with the SMBus. >If that's the case there's (unfortunately) not much we can do... > > Reads have been fine so far. Unfortunatly I'm not using a self compiled vanilla kernel but maybe I can quickly compile one tomorrow or so (after a math examination). I have now changed the configuration to first load the w83l785ts module and then the asb100 module, after a few reboots I'll see if it helped. I will report if it does. >>BTW: I had to change pwmconfig a bit for it to detect the fanX_pwm >>lines of the asb100. In it s current state it only finds pwmX . I can >>send it to you if you don't know what I mean. >> >> > >Yes, please provide your changes in the form of a patch. We'll review it >and see if it's acceptable. > >Thanks. > > It looks like the script has been corrected in lm_sensors 2.8.7 so nevermind about this. Thank you for your help Johannes H?bner