So i first i experienced this yesterday but whenever i would open my steam it would tell me "Error: Failed to find matching mode for DXGIOutput, can't create D3D window. Im on windows 10(64bit), directX 12, and have a dual-x r9 270x 2g d5 graphics card and a AMD- FX 8350 Eight Core Processor. I have tried updating my drivers but nothing has yet given me a permanent fix. Yesterday when i got the drivers my computer ran steam with no problem but i did have abnormally low FPS. Today however that same error message continues to show up even after i reinstalled drivers. Any suggestions on what to do?