I use a Lenovo G580 i3 x86_64 Laptop. Did a Killdisc one pass clearance of the Hard disc and selected UEFI in the BIOS. Then installed the Mageia-6-x86_64-DVD.iso. from DVD. Did a custom disc partition and all went well, no surprises.
Had some breaks before adding media in MCC, so tried to just lock the screen. No reaction. OK, could be I am missing an update. Added media, but this persisted. OK, so there will be more updates as well. Through all of this, the buttons simply would not lock the screen.
Tested and checked all variations. All the other buttons (links) work.
Is there any way in which I can try to debug this?
Should I file a bug report?