For me this bug reproducible only with 3.16 and 3.17 kernels. With 3.15 and previous kernels this bug is not reproducible, at least on my hardware (Radeon HD 6620G).
For me this bug reproducible only with 3.16 and 3.17 kernels. With 3.15 and previous kernels this bug is not reproducible, at least on my hardware (Radeon HD 6620G).