For hardware older than about a half-decade, Ubuntu 12.04 is becoming more sluggish to use, burning through greater power, and really not being worthwhile to pursue the upgrade. The Linux support for this older hardware has passed its prime.
In general I find the optimal Linux / open-source hardware support to be two to three years after the hardware's first availability, at least when it comes to open-source graphics drivers and some processor/compiler optimizations, etc. After that the support loses focus.
For anyone that still is running such vintage hardware in a production capacity, I would advise against upgrading to Ubuntu 12.04 LTS or any other newer Linux distribution for that matter, aside from possibly those distributions catered towards running on crippled hardware. For Pentium M era hardware, I'm finding Ubuntu 10.04 LTS "Lucid Lynx" to be the sweet spot, and for those with old hardware, you can always selectively upgrade your packages from there. Legacy hardware users would find a better Linux desktop experience if they went with this approach.
At least for Ubuntu 12.10 they will be dropping the non-PAE 32-bit kernel, which will knock out some users and make them think twice about trying to upgrade. Hopefully the Ubuntu developers will decide to do greater "spring cleaning" of older hardware support once Precise Pangolin is out the door.
cbope wrote:Well, it seems to be a bug in the newer 3.2.0 kernel with CPU's that don't support PAE. I don't find anything that says my CPU is *not* supported.
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