I've just tried the latest 18.2.2 Adrenalin drivers and the bug is still not fixed. What's more, there's no mention of it in the release notes under 'known issues'.

The advice to kill the AMDDVR process as a workaround is not a practical solution for me as it's so easy to forget. Having my Radeon GPU run 10 degrees higher than usual (at idle) is not an acceptable state of affairs either. Until AMD fix this bug I feel I have no choice but to stick with the old 17.11.4 Crimson drivers.

I appreciate that bugs like this may not always be easy to fix but considering its potential impact on GPU power consumption and temperature, I'm very disappointed that it's taking this long. Remember, the first Adrenalin drivers were released in December 2017.