Unusual issues with your display device
Unusual issues with your display device
Hello, hoping someone can lead me to my next step as I am really struggling to troubleshoot this one! i have the following setup. 2 x Dell SE2722HX Monitors, 1 WD19TBS & an XPS 15 9520 the laptop is connected to the TB Dock and then the dock to the monitors by DP to HDMI cables. we had a power cut at our office, and a generator kicked in to cover the office, the generator is a 70s Caterpillar and does not provide stable clean power. since then, my monitors will randomly go black for a split second like they loose power, the backlight goes off and all, completely go off, but the power LED stays on, the laptop does not see a disconnect and the screen does not show me the no signal so its not actually disconnecting just dropping out for a second. here is what i have tried: New WD19TBS (twice) including power adapter new XPS15 9520, i had a 9510 before but am using a completely brand new machine now to test this. new HDMI cables, new Power cables. the only thing i can think is the screens have been affected by the bad generator? we have had a bad generator cause a few sensitive electronics to play up before such as printers, unfortunately the power for our office comes from a farm and we cannot control the power source as we are in the middle of no where! we have UPS' on most of the equipment but these screens are straight into the wall. any help would be appreciated! thanks