Gpu accelaration

Something weird happened. My system is identifying the IGpu correctly (HD4600) the vram is showing in the correct amount, but all of a sudden I have no gpu acceleration. You tube videos peg the CPU, basically my cpu usage is of the chart even for ordinary things because the gpu is not doing anything. Another things interesting, the gpu is no longer showing on Istats menu for example. Any ideas?

submitted by /u/John_val
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