Yesterday I installed ubuntu 12.10 on my Acer Aspire TimelineX 4820T. After playing around with it, the screen suddenly freezes so I was forced to hard reboot my laptop. I think compiz does not work well with my laptop. Quick search around the net and I found out that there’s a lot of complains that ubuntu 12.10 is buggy.
Screen freeze constantly happened so I decided to switch from Gnome to KDE. After all, their differences are mainly cosmetic. See bit.ly/U2xGGq.
I installed Kubuntu and so far I don’t experience lags and freezing of desktop.