I have the frequently described problem of flickering but I have made some progress on the diagnostic.
- AMD Phenom II X945
- AMD FIREPRO W4100
- Windows 10
- AMD Catalyst 2015.1104
- Driver 15.201.2401.0
- Monitor Dell U3415W. Connected DP1.2 3440x1440
flickering happen immediately when the mouse is moved, when the graphic load is very low.
The problem disappear as soon as a 2nd monitor is connected
the memory clock is at 150MHz (Using GPU-Z) when the computer idle and as soon as am action increase graphicload, frequency goes up, it is when the flickering start.
When a second monitor is active the memory frequency stays at 1000MHz, and in that case no flickering.
How can I ensure that the memory clock doesn t fall at 150MHz?
There is no Overclocking option on Catalyst.