Two days ago I've updated Ubuntu to 11.10 and it worked well.
I started from scratch, so I won't have to deal with "old" problems:
Here is my setup:
Plain vanilla Lenovo Z370
Harddrive was replaced by a 60 Gb Sata2 SSD
Ubuntu 11.10 (Desktop edition)
I installed the IdeaPad Driver Package (get it here) to get rid of a lot of the "Keycode 240" On the pro side:
The sd-card reader works out of the f**king box!
The key manager works!
Fn + F1 = Suspend to ram!
Fn + F2 = Switch the Backlite off
Fn + F5 = Switch all wireless connections off
Fn + F8 = Activates Num "block"
Fn +F9-F12 = Media keys (Play, Stop, Next, Previous) tested in Banshee
Fn + Arrow left + Arrow right = Louder and quiter On the down side:
Special keys 1-3 kill the deskop
Special keys 4-5 didn't work
Frequently sended "keycode 240" interupts the standby
Fn + Esc = Nothing happens (should disable the camera)
Fn + F4 = No function (should do ...)
Fn + F6 = No function (should disable the touchpad)
Fn + Arrow Up, Arrow Down (is a little bit buggy) (Should adjust the intensity of the backlite) Untested:
HDMI connection with my 23" Monitor
Fn + F3 = Switch between display modes (for beamer and external displays) Unconfirmed:
The new Ubuntu feels like it uses more energy (which I can't prove right now)