Created attachment 157906 [details] Application window showing the problem SUMMARY *** Not all disk drives are shown in the list of sensors. *** I want to add a read/write sensor plasma widget to my desktop using plasma-systemmonitor widgets. The problem shows up in the main GUI application too. My computer has 3 HDDs (sd[abc]) and 3 NVME drives (nvme0n1, nvme1n1, nvme2n1) attached. They appear in the output of `lsblk` and the KDE Sytem Info program shows them all right. However in plasma-systemmonitor when I select the Disks sensor source menu I am shown only nvme1n1p6 and nvm1 (see attached screenshot). I would expect to see all the devices listed here. nvme1n1p6 is the root partition, and "nvm1" is the label of one of the other nvme partitions, so maybe the systemmonitor is only listing those devices with labels? The others have various filesystems on them including NTFS and a ZFS pool spread over the HDDs. STEPS TO REPRODUCE 1. Create some partitions 2. Look for them in plasma-systemmonitor OBSERVED RESULT All the available partitions. EXPECTED RESULT Only a subset of partitions. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Kubuntu 22.10, Linux 6.2.0-19-generic (kubuntu proposed but problem exists on older kernels too) KDE Plasma Version: 5.27.3 (but has been seen in earlier versions) KDE Frameworks Version: 5.104.0 Qt Version: 5.15.6 ADDITIONAL INFORMATION I've been seeing this problem for a while. Maybe it is the desired behaviour but it makes it impossible to monitor all my actual disk usage.
I can confirm this problem. I'm using a LUKS encrypted SATA SSD as an LVM cache for my LUKS encrypted SATA HDD and it's not displayed in plasma-systemmonitor. The HDD is shown.
Thanks for reporting. Did any of you get the chance to retest this with the current version of KDE?
Updating status, pending an update from the reporter here - thanks!
I am now running KDE 6.3.5, KDE Frameworks 6.14.0, Qt 6.9.0, Linux 6.14.6. on Arch Linux. The disks do all appear now in the system monitor options. However, they all show up as having 0 bytes/sec read rate if I add that monitor. I am not a member of the "disk" group so perhaps this is a permissions issue?
Thanks! Do you see a lack of read rate data for all of the drives on your device, or just the ones that previously didn't show up because they had no label? For what it's worth, I'm not in the "disk" group on my Fedora KDE 42 device, and the Read and Write rates show up for me in System Monitor, so I don't *think* that it'd be necessary to belong to that group to have that data populate?
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I went to check this today and now it seems that system monitor is able to see the read rate from all the drives. The only thing that's changed is my kernel version, now at 6.15.0, and I doubt that has anything to do with it. I may just have been mistaken in my last report. Anyway thank you for the help.