I'm using the LG 29UM59-P.
Although I used it with the resolution 2560×1080 until the day before yesterday, resolution was suddenly dropped to 1920×1080 from yesterday, and it did not return.
When I removed the AMD Radeon Vega(TM) 11 graphics driver, reinstalled the monitor's driver and rebooted, the resolution returned to 2560×1080 for a moment, but again the AMD driver was automatically installed and the resolution was dropped.
Do you have any solutions?
My PC configuration
Lenovo ThinkCentre M75q-1 Tiny
AMD Ryzen 5 PRO 3400GE
64 GB SO-DIMM DDR4 2666 MHz
and 2 SSD(M.2 and 2.5 inch)
Windows10 Home