This issue has persisted for some time I don't think it's a regression.

- h/w: HD 7950
- s/w
 * kernel: several versions, including mainline 4.6.13
 * xorg: several versions, including 1.19.6
 * kernel drivers: both radeon and amdgpu
 * ddx: both modesetting and amdgpu

The hdmi audio sounds perfect but the dp audio is slower which makes it sounds
like 45LP on 33.

Please advise any more info/logs which I should supply

Thanks