Flickering screens during startup

[MrAztecL]

Hi,

recently i found out that my secondary display is doing something weird during it's bootup? turn on? wakeup. It starts to flicker the power (I assume from seeing power button light also flickering on and off [just not the orange that is usual off indicator but rather just black like there is no power at all]) on and off. I have no clue what is the reason that it makes such thing. After a moment it enters let's call it phase 2 which is flickering with manufacturers logo and after that it just works. The problem i'm also seeing is that the time it takes is expanding. Funny fact, my brother also have the same problem with his monitor, but his started about month ago while mine about week ago. Brother's monitor now takes even up to 2h to turn on. Both monitors are about 9 y/o now and never had any issues. That is LG Flatorn W1934S and less known Medion MD30999PD that you probably won't find anything about in the internet. I would appreciate the help.