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PC Graphics

junch4ng
Journeyman III

RX550 can't support full sized resolution on my 2nd monitor

I have been used a 'SAMSUNG' ultra wide, 5120*1440 sized monitor (DP connected) and
recently added 1 more monitor 'LG' which is 3440*1440 (HDMI connected).

And now SAMSUNG displays only as 1920*1080(FHD, not changable) while LG displays full WQHD.

As the spec sheet, RX550 can handle up  to 7680*4320,
and my system requires less then maximum spec but it don't work properly.

Is it a driver issue / or just RX550 can't support these 2 monitor simultaneously?

Anyone knows, please answer. 
Thank you

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