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Should ATI catalyst be installed for sake of openCL

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linux-howto

http://askubuntu.com – I have a HP Envy 4 1025tx with Hybrid graphics. Although this is a 64bit system, I've installed 32bit Ubuntu on it for some reasons.(Hybrid graphics don't do well with 64bit Ubuntu.-"Some one on some forum") I had heating problems with the GPU but I've fixed them all with vgaswitcheroo. But now I wanted to use my Blender on my Ubuntu. To my surprise Blender didn't detect the dedicated 7670m card in my machine. I've confirmed with cat /sys/kernel/debug/vgaswitcheroo/switch Both IGD and DIS were up and running. I dont seem to have libopencl on my /usr/lib even though my synaptic manager says (HowTos)