What didn't work out-of-the-box with your Linux rig?

[zmjjmz]

iSight
Volume control
Right click (actually, not entirely true, in Feisty I could use F12, but in Gutsy that stopped working)
That's really about it, my MacBook was well supported.

[rsaavedra]

Recenty reinstalled my Ubuntu Hardy Heron (except for my /home partition) with all its updates, and my printer still doesn't work right out of the box. Printer is an HP 1020 laser, connected through USB.

This printer gets detected and recognized perfectly and quickly, but printing a document shows no error, and nothing goes to the printer, no blinking lights, nothing.

In Gutsy I remember that a workaround was to restart Ubuntu, suddenly the printing job from the previous Ubuntu session did reach the printer in this session (!). I remember reading that this was a known bug in CUPS.

Been using Ubuntu for more than a year, and this problem is still here, apparently hasn't been removed.

[quinnten83]

My HP scanjet 2400 and my wacom bamboo one tablet.
The latter I could fix.

[Sam Lars]

Maybe wireless? I think it works by default now. Other than that, the card reader only reads SD cards...