Thanks for the post. I have not been able to replicate this behaviour, so perhaps it was a one off.
Thank you amdmatt very much for the answer,it's not a big deal i did post this maybe someone did have the same issue and thought i maybe can help. The weird think was that my monitor showed 1920*1080 on 60i but on Win 10 setting the refresh rate was on 29Hz...i turned it to 60hz and then my monitor went to 1920*1080 60P(Hz)
I also notice that if i clean unistall with DDU the folder AMD under C:\ don't get cleaned, and that makes also problems with the driver update. Since Win 10 is updating Flash player every time be his own (for Edge) that maked my AMD driver crash if a stream-playback(twitch) or youtube (HTML5) video is been watched by dropping frames on the begging and then crash, i fixed all that bý using AMD Clean unistaller old version of a Amd programm and by unistalling Flash on Firefox and only run HTML5 on twitch.
Intel i7 3770
8GB DDR 3 1333 MHz
Acer OEM motherboard B75(latest bios update vers. P11-B1)
Asus DC II Top R9 270x 2Gb
Thermaltake London 550w Gold