(In reply to Dr. Werner Fink from comment #10) > (In reply to Tony Mechelynck from comment #9) > > Indeed ... but AFAICS from dmesg those are disconnected [...] Yes, there has been a mid-air collision. I was typing: (In reply to Tony Mechelynck from comment #4) > Created attachment 711196 [details] > output of the dmesg command Here, "USB Flash Disk" appears near timestamp [ 3.262267] and "Cruzer Blade" (the other disk) near timestamp [ 3.685860]. They are attached to sdb and sdc at timestamps [ 4.698871] and [ 4.896881] respectively, but they seem to be "killed" shortly after that. I'll now reboot (just in case) and report the result, but ATM I don't have much hope.