|
Title: Linux - GPU Temperature - 2nd and 3rd sensor Post by: _Vince_ on February 06, 2012, 04:29:51 PM I have a question that would like for your comments
With GPU-Z we can get GPU's temperature information from 2nd and 3rd sensor; to my observation the 2nd and 3rd sensor always indicates around 5-7 degree hotter than the 1st sensor. With Linux, how can we do that? I mean getting the additional information the 2nd and 3rd sensor And the sensor which is reported by "aticonfig --odgt" is also the first sensor listed in GPU-Z? Or it is the 2nd or 3rd? Googled for several hours but I could not find anything useful. Title: Re: Linux - GPU Temperature - 2nd and 3rd sensor Post by: DeathAndTaxes on February 06, 2012, 04:34:19 PM odgt shows what is available at driver level which is the average (possibly weighted) of all 3 values.
The chip has 3 temp probes. The chip feeds data to the board which is used by the bios to adjust fans, engage thermal throttling, etc. The driver pulls that data and reports it as a single value. Software which gets all 3 values (and VRM values, and host of other great data from the bios that AMD feels is "unimportant") do it by querying the board at a low level not using the drivers. Sadly AMD attitude has always been lets abstract stuff away via the drivers. |