Not yet... I have troubles installing the latest Catalyst drivers (15.7) on ubuntu server x64 (14.04.3 LTS)...
System doesn't start correctly... black screen with white cursor for me...
Looks like Catalyst driver is installed now.
You can try following again:
The Application Timeline Trace profile session traces OpenCL and DirectCompute API calls and their respective GPU async invocations. These are presented on a timeline scale with a fine resolution of 1 microsecond.
The timeline of the Power Profiler has a minimal resolution of 20 milliseconds as you have noted.
On my ubuntu 14.04.1 I just updated the drivers with sudo apt-get -y install fglrx-updates and the module loaded is then fglrx 15.20.3 [Sep 8 2015]
I run latest CodeXL but I dont undestand the error message: