Bug 507126

Summary: system monitor cannot read sensor data from Intel Arc B580
Product: [Applications] plasma-systemmonitor Reporter: stardust.hoshikuzu.luo
Component: generalAssignee: KSysGuard Developers <ksysguard-bugs>
Status: RESOLVED WORKSFORME    
Severity: normal CC: ahiemstra, kde, plasma-bugs-null
Priority: NOR    
Version First Reported In: 6.4.3   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: screenshots showing the problems

Description stardust.hoshikuzu.luo 2025-07-16 19:41:24 UTC
Created attachment 183288 [details]
screenshots showing the problems

SUMMARY
When using Intel Arc B580, system monitor cannot get the right data from the GPU sensors.
GPU usage, temperature and other specs are always 0. 
The right data can be found in sysfs:
/sys/class/drm/card0/device/hwmon/hwmon*

STEPS TO REPRODUCE
1. Run system monitor.
2. Check GPU usage on default page.
3. Add GPU temperature to the page and check.

OBSERVED RESULT
Both usage and temperature are 0.

EXPECTED RESULT
Some value larger than 0.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma:
KDE Plasma Version: 6.4.0
KDE Frameworks Version: 6.15.0
Qt Version: 6.9.1
Kernel Version: 6.15.3-2-cachyos (64-bit)
Comment 1 David Redondo 2025-07-21 13:57:53 UTC
What is the output of 

/usr/lib/ksystemstats_intel_helper
?

For temperature I guess those are the properties:
https://docs.kernel.org/admin-guide/abi-testing-files.html#abi-file-testing-sysfs-driver-intel-i915-hwmon

We can add that for sure, sorry I was not aware of those so far.
Comment 2 David Redondo 2025-07-22 12:21:49 UTC
Sorry that will try to get the data from the integrated gpu. 

/usr/lib/ksystemstats_intel_helper "pci address of your card"

This is the name of device link in the path that you pasted, like 0000:00:01.0

When plasma-systemmonitor is open, a process with this binary such an argument should also be running.
Comment 3 Bug Janitor Service 2025-08-06 03:46:34 UTC
๐Ÿ›๐Ÿงน โš ๏ธ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME.

For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging.

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Comment 4 Bug Janitor Service 2025-08-21 03:47:08 UTC
๐Ÿ›๐Ÿงน This bug has been in NEEDSINFO status with no change for at least 30 days. Closing as RESOLVED WORKSFORME.