I just bought the Samsung lu28r550u monitor, I connect the monitor to my laptop through HDMI using the cable come with the monitor, and when windows puts the display to 'sleep' the monitor won't wake it flashes on with 'HDMI 1' (which my pc is connected to, and I have to press the power button on the monitor to bring it back, why is this happening?
BTW, I'm using the HDMI 2.0; if I switch to HDMI 1.4 in the monitor menu, the issue is gone, but HDMI 1.4 only give me 4K @30HZ.
yes, my laptop is Dell G3 3579 (https://www.dell.com/en-us/shop/dell-laptops/dell-g3-15-gaming-laptop/spd/g-series-15-3579-laptop)
it's clearly support HDMI 2.0.
Is it because of the HDMI cable? but I was using the samsung HDMI cable come with the monitor.