I am using the latest ubuntu release 12.04 upgraded online from previous release 11.10 Till this release openarena was working perfect but last night I upgraded to 12.04 and now openarena terribly lags / runs slow. Even the blue background water like thing animation is very slow and the game lags badly from start to exit even in menu.
I am using AMD Sempron 2600+ 1.5GHz 1GB RAM, K8M800 motherboard Dual boot along side Windows XP. Openchrome drivers are currently selected. Till 11.10 the whole system was working perfect. I also tried a fresh install of 12.04 but the problem persists. Tried to file bug, but no response since last 1 and half month.