Comment # 4 on bug 73947 from Alexander Tsoy

Sorry, my last comment is incorrect. Seems the card just cannot reliably work
in a high power states. When no 3D apps are running, power profiles can be
freely switched. If I first switch profile to "high" and then run Unigine
Heaven (I didn't test other modern 3D apps yet, but probably the result will be
the same), then the GPU lockup.