On 2021-08-22 5:47 p.m., David Christensen wrote: > On 8/22/21 2:26 PM, Emanuel Berg wrote: >> didier gaumet wrote: >> >>> I would think that pwmconfig complains that it finds 3-pins >>> fans set up to PWM mode (4-pins required) >>> >>> Your UEFI propose either to setup your fans globally or >>> individually and I think that by default the setup is >>> global. This would probably be fine il all your fans were >>> either 3-pins (DC mode) or 4-pins (preferably PWM mode but >>> DC mode is possibility). But you have both installed. >>> A solution could be, in your UEFI, to individually set up >>> all your 4-pins fans to PWM mode, while setting up all your >>> 3-pins fans to DC mode. >> >> Yeah, or replace the 3-pins with 4-pins? > > > I believe your motherboard can support both 3-pin and 4-pin fans using > hardware/ firmware/ Setup. > > >> re: pwmconfig, here is what it says: >> >> $ sudo pwmconfig >> # pwmconfig version 3.6.0 >> This program will search your sensors for pulse width >> modulation (pwm) controls, and test each one to see if it >> controls a fan on your motherboard. Note that many >> motherboards do not have pwm circuitry installed, even if your >> sensor chip supports pwm. >> >> We will attempt to briefly stop each fan using the pwm >> controls. The program will attempt to restore each fan to full >> speed after testing. However, it is ** very important ** that >> you physically verify that the fans have been to full speed >> after the program has completed. >> >> Found the following devices: >> hwmon0 is k10temp >> hwmon1 is asus >> hwmon2 is nouveau >> >> Found the following PWM controls: >> hwmon2/pwm1 current value: 52 >> hwmon2/pwm1 is currently setup for automatic speed control. >> In general, automatic mode is preferred over manual mode, as >> it is more efficient and it reacts faster. Are you sure that >> you want to setup this output for manual control? (n) y >> >> Giving the fans some time to reach full speed... >> Found the following fan sensors: >> hwmon1/fan1_input current speed: 0 ... skipping! >> >> There are no working fan sensors, all readings are 0. >> Make sure you have a 3-wire fan connected. >> You may also need to increase the fan divisors. >> See doc/fan-divisors for more information. > > > I consider motherboard hardware/ firmware control of fans to be more > reliable than operating system control of fans. Using a Linux tool to > control the fans involves several layers of complexity and, given > closed-source motherboard hardware and firmware, the only route is > reverse engineering; which is error-prone at best. And, you paid for a > motherboard that has advanced fan control features. I would advise > using the motherboard hardware/ firmware/ Setup utility to control your > fans. > Somewhat what I advocated since the beginning.
Seems to be much work with risks involved when there's already a working infrastructure that does the job. Overkill > > Can you control the speed of any of the fans using Setup? > > > David > -- Polyna-Maude R.-Summerside -Be smart, Be wise, Support opensource development
OpenPGP_signature
Description: OpenPGP digital signature
