I would not recommend 11.10, it has issues running more than one videocard.
Well... I can run CGMiner @ Ubuntu 11.10 with 3 5870 just fine. The GPU_USE_SYNC_OBJECTS=1 var is a requirement.
But, when I try the same setup at my 2 5970... It doesn't work.
Right now, I have one 5850 @ Ubuntu 11.10 64 bits, Catalyst 11.12 and CGMiner 2.1.2 working fine.
Anyway, why ckolivas make a cgminer binary for Ubuntu 11.10 if no one is able to run on it?!
As you already know and have quoted elsewhere from the script in my sig - there is no issue with using the 11.10 binary on 11.04 as long as you link the curses library to the new name.
However, from a development platform point of view, it makes simple sense as to why anyone might upgrade.
From the point of view of a mining rig, I would stick to the version with the least problems and the best performance ... 11.04
(until there is a good security related reason - related to mining - to update it)
Sure, I understand you.
But, releasing a binary version of a program that doesn't work for the system it was compile for, does not make any sense. This force people to do workarounds (like linking the curses library), which isn't easy for new people to do, and loose too much time on it... And the problems with new Catalyst versions is just another negative point of CGMiner for Ubuntu 11.10...
I need to most recent version of Ubuntu because my mining rig isn't dedicated only to mining... So, as I saw cgminer binary FOR ubuntu 11.10, I spent a lot of time on it just to see that it is impossible to use it on top of the system that it was supposed built for.
Anyway, I can live with that, CGMiner is the best miner out there... I'll never try another miner software anymore. I just think that release cgminer for Ubuntu 11.10, which clearly doesn't work because of AMD bad work on its Catalyst, just confuses new people.
Best,
Thiago