Highlighted
martonmiklos
2 Bronze

Dell Precision 7530 + TB18DC + Ubuntu 16.04-18.04-18.10-19.04 == high PCH temeperature

Hello folks,

 

I have the setup mentioned in the subject. All firmware (TB, system BIOS, dock) is up to date, the problem presists with the factory default 16.04.

I have two DELL U2717D (2560x1440) connected to the dock one with HDMI one through mDP port.

If I connect my docking station the PCH temperature idles around 80 °C which makes the fans spinning with annoying noise. This renders the dock unusable for me because my colleauges cannot stand it's noise.

If I plug the same monitors and devices to the notebook directly the PCH temperature is much lower: idles around 60 °C.

 

The same setup remain cool with Windows 10.

 

I have found the following info which might be relevant:

http://forum.notebookreview.com/threads/precision-7530-precision-7730-owners-thread.820539/page-126#...

 

It turns out that Windows also could be affected by this problem and it is related to the ASPM.

 

Here is my lspci -vvv output:

https://gist.github.com/martonmiklos/5a781c464c160ff5d0dc2482b42392d2

 

I can see that several devices has ASPM disabled (NVIDIA GPU, soundcard, wifi, and some of the PCH root hubs)

 

Can anyone give me some guidance about how should I move forward with the investigation?

0 Kudos