Solid gets its info by querying udev I presume but the cores numbers are sorted based on strings and not on numerical order: if you have 12 cores you will have : 0 1 11 12 2 3 4 ... so the problem is that 11 and 12 < 2 . Reproducible: Always Steps to Reproduce: 1. Open device viewer from Device Information in KInfocenter but to observe the bug you need more than 10 cores 2. 3.
Created attachment 98416 [details] patch to sort processors based on cpu number
Same bug exists in 5.27.0
Thanks for the patch, just so you know, we tend to use http://git.reviewboard.kde.org for patches, ones on bugs tend to get missed, particularly in less active components. The patch itself could do with some work; right now you're effectively resorting the entire list on every insert, and with a regular expression too. You should be able to identify where in the list to insert, then insert at that position using: auto place = std::lower_bound(list.constStart, list.constEnd, newItem, compareFunction); list.insert(place, newItem); also instead of a regular expression you should be able to use QCollator with http://doc.qt.io/qt-5/qcollator.html#setNumericMode