I've just tried to run the AMD APP SDK sample GaussianNoiseGL on Ubuntu 14.04 x64 and a R9 290X and the Catalyst 14.6, and it works fine when compiled as provided. However, if I change the major GL context version to 4 (instead of 3), it doesn't work any more. Nothing else changed. I've found this while trying to create a repro-case for a problem in another application, where I have to use 4.x.
Is this a known issue? Any workarounds? Anyone else who can reproduce it?