Fan of the Videocard on full speed after waking from suspend to disk

JZL240I-U · 09-09-2020, 08:50 AM

Not sure whether this is the optimal forum, so mods feel free to move it

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Well, subject says it all. This is on openSUSE tumbleweed with the MSI-videocard. For the specs of my machine see my signature. Is there a command to (re)-load the radeon driver (if that is the culprit), or do I always have to reboot to finish the noise?

smallpond · 09-09-2020, 10:34 AM

When it's in the bad state, what is the output of:

Code:

grep "" /sys/class/drm/card*/device/power_*

JZL240I-U · 09-09-2020, 11:41 AM

Here it comes:

Code:

me@PC:~> grep "" /sys/class/drm/card*/device/power_*
/sys/class/drm/card0/device/power_dpm_force_performance_level:auto
/sys/class/drm/card0/device/power_dpm_state:balanced
/sys/class/drm/card0/device/power_method:dpm
/sys/class/drm/card0/device/power_profile:default
me@PC:~>

I'll reboot now and then add the "normal" values ... done:

Code:

me@PC:~> grep "" /sys/class/drm/card*/device/power_*
/sys/class/drm/card0/device/power_dpm_force_performance_level:auto
/sys/class/drm/card0/device/power_dpm_state:balanced
/sys/class/drm/card0/device/power_method:dpm
/sys/class/drm/card0/device/power_profile:default
me@PC:~>

Hmm. card0 it says. My system has an integrated graphic chip and an external card. Could it be we see the wrong chip?

smallpond · 09-10-2020, 09:20 AM

The "card*" should have listed all cards that have drivers loaded.

According to https://www.x.org/wiki/RadeonFeature/ the interesting bit is "power_method:dpm" which it says must be selected at boot. Maybe its broken after suspend. Test by setting it to "profile", and set power_profile to "low". If that's it, you can set it to what you want with either a startup script or by setting the kernel command line options.

JZL240I-U · 09-13-2020, 01:30 PM

Sorry to answer late, I was gone for a while.

But currently I am stumped:

Code:

me@PC:~> sudo echo profile > /sys/class/drm/card0/device/power_method
bash: /sys/class/drm/card0/device/power_method: Permission denied
me@PC:~> ls -al /sys/class/drm/card0/device/power_method
-rw-r--r-- 1 root root 4096 13. Sep 20:20 /sys/class/drm/card0/device/power_method
me@PC:~> su
Passwort: 
PC:/home/me # echo profile > /sys/class/drm/card0/device/power_method
bash: echo: write error: Invalid argument.
PC:/home/me # echo "profile" > /sys/class/drm/card0/device/power_method
bash: echo: write error: Invalid argument.
PC:/home/me # echo profile
profile

I don't get it. Neither with sudo nor as root?!? Any ideas?

Btw. do I echo before or after suspending to disc?