Version: 1.4.5 (using KDE 3.5.6, Kubuntu (feisty) 4:3.5.6-0ubuntu14) Compiler: Target: i486-linux-gnu OS: Linux (i686) release 2.6.20-15-generic In amarok when I am playing last.fm streams the tracks (artist, title, etc) are not recognized. If I remember well, then before (in Kubuntu Edgy for example) this worked.
Confirmed on 1.4.6 (it's much worse than it was on 1.4.5) Amarok does not show any track information while listening to various stations (nor textual, nor almum cover, nor track length etc.). Sometimes (every 30 minutes or so), though, the info is updated, but it is not the corrent behavior. I recall that amarok used to work fine (1.4.4 or so, but this bug might not be related to specific version, maybe just last.fm altered their protocol).
I would say it's just coincidental that these problems happened after upgrading. In truth last.fm has been having technical problems for weeks, e.g. no metadata showing for streams.
No, last.fm official client works like a charm (shows all info etc.) for the same streams.