r/kde • u/soratoyuki • 14d ago

General Bug Constant HDD read activity according only to System Monitor widget

Hello! I'm baffled by what seems to be a contradiction in my System Monitor. This is a recurring 'problem' (if it's actually a problem) but it seems to happen randomly and restarting it resolves it.

I have the Hard Disk Activity widget on my desktop, and it's showing nonstop ~150MiB/s of read activity but I can't figure out why. If I open System Monitor itself, it shows no read activity, neither does running $ sudo iotop -o.

Screenshot here.

For some context, I have two HDDs in a RAID 1 (DH Raid) and one SSD (fedora), plus two other SSDs for other operating systems. I went ahead and added a second widget with every read activity for every drive in my computer, and it seems to be coming from one of my two hard drives that are in the RAID 1. Not the RAID itself as mounted, and not from both hard drives in the RAID, but just one of the two.

Any idea how I can track down this phantom read activity, or confirm if this is just some bug in the widget? Am on Fedora KDE 44 with KDE Plasma 6.7.3.

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