svenlange2 / ryzen-5800x3d-linux-undervolting Goto Github PK

EDIT: I resolved it myself by delaying the execution of the command after resume for 2 seconds, don't know why, but it now applies correctly.

Hi,

I'm trying to automate applying the undervolt on system boot and system resume from sleep but am getting some confusing results.
I've made a service that gets triggered at boot and resume:

`[Unit]
Description=Run script at boot and on resume from hibernate
After=sleep.target multi-user.target

[Service]
ExecStart=/usr/bin/bash /home/kenneth/uv.sh

[Install]
WantedBy=sleep.target multi-user.target`

This calls the uv.sh script that contains:

python3 /mnt/5TB/Projects/R7_5800X3D/Ryzen-5800x3d-linux-undervolting/ruv.py -r python3 /mnt/5TB/Projects/R7_5800X3D/Ryzen-5800x3d-linux-undervolting/ruv.py -c 8 -o -30

It basically resets the undervolt, for good measure, and re-applies it.
The issue I'm having now is the service gets triggered correctly and reports it's working correctly as shown here:

` sudo systemctl status undervolt.service  ✔
○ undervolt.service - Run script at boot and on resume from hibernate
Loaded: loaded (/etc/systemd/system/undervolt.service; enabled; preset: disabled)
Active: inactive (dead) since Sun 2023-10-29 18:42:03 CET; 1h 22min ago
Duration: 42ms
Process: 16328 ExecStart=/usr/bin/bash /home/kenneth/uv.sh (code=exited, status=0/SUCCESS)
Main PID: 16328 (code=exited, status=0/SUCCESS)
CPU: 42ms

Oct 29 18:42:03 Kenneth-Desktop bash[16331]: Offsets set to 0 on all cores!
Oct 29 18:42:03 Kenneth-Desktop bash[16336]: Core 0 set to: -30 readback: -30
Oct 29 18:42:03 Kenneth-Desktop bash[16336]: Core 1 set to: -30 readback: -30
Oct 29 18:42:03 Kenneth-Desktop bash[16336]: Core 2 set to: -30 readback: -30
Oct 29 18:42:03 Kenneth-Desktop bash[16336]: Core 3 set to: -30 readback: -30
Oct 29 18:42:03 Kenneth-Desktop bash[16336]: Core 4 set to: -30 readback: -30
Oct 29 18:42:03 Kenneth-Desktop bash[16336]: Core 5 set to: -30 readback: -30
Oct 29 18:42:03 Kenneth-Desktop bash[16336]: Core 6 set to: -30 readback: -30
Oct 29 18:42:03 Kenneth-Desktop bash[16336]: Core 7 set to: -30 readback: -30
Oct 29 18:42:03 Kenneth-Desktop systemd[1]: undervolt.service: Deactivated successfully.
`
However when I manually check the undervolt from a terminal by entering:

sudo python3 /mnt/5TB/Projects/R7_5800X3D/Ryzen-5800x3d-linux-undervolting/ruv.py -l -c 8
It returns the following:

sudo python3 /mnt/5TB/Projects/R7_5800X3D/Ryzen-5800x3d-linux-undervolting/ruv.py -l -c 8  ✔ Core 0: 0 Core 1: 0 Core 2: 0 Core 3: 0 Core 4: 0 Core 5: 0 Core 6: 0 Core 7: 0

Indicating the undervolt didn't apply.
When I check with Zenmonitor3 I can confirm it didn't apply.
To make things stranger it does work on boot, but doesn't work after waking up.
The service gets called after waking up but the undervolt doesn't seem to "stick"'.

Would you be able to shed some light on this?
Many thanks in advance!

Kind regards.

I would also like to modify the power limit, can you add that feature too?

Hey, thanks for doing this!

Unfortunately, the script seems to have no effect for me.

On Windows the PBO Tuner seems to reduce temps by ~5-10degrees on idle and never spikes higher then ~76degrees.
Running your script does not result in any changes in temps.

Any idea what it could be?

The readback shows -30.

System info gist

Thanks in advance!

Ryzen-5800x3d-linux-undervolting$ sudo python3 ruv.py -c 8 -o -30
Core 0 set to: -30 readback: 0
Core 1 set to: -30 readback: 0
Core 2 set to: -30 readback: 0
Core 3 set to: -30 readback: 0
Core 4 set to: -30 readback: 0
Core 5 set to: -30 readback: 0
Core 6 set to: -30 readback: 0
Core 7 set to: -30 readback: 0

?