Hi, I've got a system with an AMD Ryzen 5 2400G with Radeon Vega Graphics that is connected to a Dell U3011 Monitor with a native resolution of 2560x1600 via DisplayPort. The OS is OpenSuse Tumbleweed with Kernel 4.16.12. I was used to switch off the monitor with the power button when I'm not using the system. But now when I switch the monitor on again, the screen resolution is often only 1920x1200 and I've found no way to set it back to 2560x1600 without rebooting the system. This happens not always, but very often. And it doesn't happen in DPMS standby mode, only after a power cycle of the monitor. Does anybody know, why this happens and how it could be fixed? Best regards Lothar
