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(Vega 56) Wattman manual Core voltage settings keep resetting after any full screen experience

Question asked by makxik on Jun 13, 2019

HWiNFO64 reporting 1v-1.05v at P0's Core voltage after I played a game or launched any app in Full screen mode.

Steps to reproduce a bug:

1: Open AMD Settings and enable manual voltage control;

2: Open any d3d full screen game or change monitor resolution (Is the key);

3: Regardless of whether any states are active or their settings are changed: the P0 state blocks its voltage to 1 V

 

I have a pc with following specs:

 

CPU: Intel Core i5-9600k @ 4.6Ghz;
GPU: Radeon™ RX VEGA 56 GAMING OC 8G;
RAM: 2x AMD Radeon R7 Performance Series [R748G2606U2S-U] 8 GB @ 3200Mhz;
MB: MSI Z370-A PRO (MS-7B48);

Monitors: Lenovo Legion Y25f [Y25f 65D9GAC4EU] @ 144hz, AOC i2352Vh @ 75hz.

Drivers: 19.5.2, 19.6.1

vega 56wattmanamd settings19.5.219.6.1

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