Bug 510571 - system monitor doesn't read NVIDIA sensors from old driver versions that don't support `nvidia-smi`
Summary: system monitor doesn't read NVIDIA sensors from old driver versions that don'...
Status: RESOLVED INTENTIONAL
Alias: None
Product: plasma-systemmonitor
Classification: Applications
Component: general (other bugs)
Version First Reported In: 6.4.5
Platform: CachyOS Linux
: NOR normal
Target Milestone: ---
Assignee: KSysGuard Developers
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-10-13 18:15 UTC by fatihozsoy1
Modified: 2025-10-14 14:40 UTC (History)
4 users (show)

See Also:
Latest Commit:
Version Fixed/Implemented In:
Sentry Crash Report:


Attachments
nvidia drivers (143.60 KB, image/png)
2025-10-13 18:15 UTC, fatihozsoy1
Details
psensor (69.78 KB, image/png)
2025-10-13 18:17 UTC, fatihozsoy1
Details
plasma system monitor (13.51 KB, image/png)
2025-10-13 18:18 UTC, fatihozsoy1
Details

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Description fatihozsoy1 2025-10-13 18:15:23 UTC
Created attachment 185738 [details]
nvidia drivers

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SUMMARY
system monitor doesnt read the sensor, nvtop and psensor does read it.
i have 2 750M GPUs. drivers installed correctly which is nvidia-470xx and nvidia-settings also sees the GPUs and reads the sensors. system monitor also sees the sensors but doesnt read them.

STEPS TO REPRODUCE
1. 
2. 
3. 

OBSERVED RESULT


EXPECTED RESULT


SOFTWARE/OS VERSIONS
Windows: 
macOS: 
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: 
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION
Comment 1 fatihozsoy1 2025-10-13 18:17:37 UTC
Created attachment 185739 [details]
psensor
Comment 2 fatihozsoy1 2025-10-13 18:18:03 UTC
Created attachment 185740 [details]
plasma system monitor
Comment 3 David Redondo 2025-10-14 07:30:58 UTC
Please paste a short excerpt of 

nvidia-smi dmon -s pucm
Comment 4 fatihozsoy1 2025-10-14 07:37:21 UTC
❯ nvidia-smi dmon -s pucm
Not supported on the device(s)
Failed to process command line
Comment 5 David Redondo 2025-10-14 07:52:45 UTC
Then that's expected. We rely on nvidia-smi to read statistics. 470 is an old driver as well , current version is 580
Comment 6 fatihozsoy1 2025-10-14 08:01:01 UTC
yes i know, is there a way for me to add lm-sensors? i think old ksysguard had a way to add script/command sensor, is it possible to do that on new one?
Comment 7 David Redondo 2025-10-14 08:37:54 UTC
All lm-sensor sensors should be available under "Hardware Sensors"